中華人民共和國國家標準(中國大陸GB標準)英文版

GB標準是中華人民共和國國家標準,也叫GB國標,是中國大陸強制執行的國家標準,所有中國大陸境內銷售的商品及提供服務都必須符合GB國家標準的要求,包括進口商品及服務; 本網站提供GB國家標準的查詢檢索,英文版翻譯,GB標準產品檢測檢驗及合規性分析服務;
       
  GB/T 34960.5-2018
信息技术服务 治理 第5部分:数据治理规范(中英文版)
Information technology service-Governance-Part 5: Specification of data governance
  GB/T 36273-2018
智能变电站继电保护和安全自动装置数字化接口技术规范(中英文版)
Digital interface technical specification for relaying protection and security automatic equipment in smart substation
  GB/T 25056-2018
信息安全技术 证书认证系统密码及其相关安全技术规范(中英文版)
Information security technology—Specifications of cryptograph and related security technology for certificate authentication system
  GB/T 30269.303-2018
信息技术 传感器网络 第303部分:通信与信息交换:基于IP的无线传感器网络网络层规范(中英文版)
Information technology—Sensor networks—Part 303: Communication and information exchange: Network layer specification for wireless sensor networks based on IP protocol
  GB/T 36472-2018
信息处理用藏语短语分类与标记规范(中英文版)
Specification on Tibetan phrase classification and tagging for information processing
  GB/T 36314-2018
电子商务企业信用档案信息规范(中英文版)
Specification for information of electronic commerce enterprise credit file
  GB/T 21707-2018
变频调速专用三相异步电动机绝缘规范(中英文版)
Insulation specification for variable frequency adjustable speed definite purpose converter-fed three-phase induction motors
  GB/T 11313.38-2018
射频连接器 第38部分: 50Ω背板和面板用模块滑入式射频连接器(TMA型)分规范(中英文版)
Radio-frequency connectors—Part 38: Sectional specification for 50 Ω model,slide-in radio frequency coaxial connectors (type TMA) for rack and panel applications
  GB/T 36209-2018
农业社会化服务 农机跨区作业服务规范(中英文版)
Agricultural service—Specifications for agricultural machinery operations service across the region
  GB/Z 35044-2018
互联网+种植服务项目运营管理规范(中英文版)
Specifications for operation management of planting service project on internet
  GB/T 6346.26-2018
电子设备用固定电容器 第26部分:分规范 导电高分子固体电解质铝固定电容器(中英文版)
Fixed capacitors for use in electronic equipment—Part 26: Sectional specification—Fixed aluminium electrolytic capacitors with conductive polymer solid electrolyte
  GB/T 36452-2018
信息处理用藏文分词规范(中英文版)
Specification on Tibetan segmentation for information processing
  GB/T 36300-2018
遥感卫星快视数据格式规范(中英文版)
Quick look data format specification for remote sensing satellite
  GB/T 36476-2018
印制电路用金属基覆铜箔层压板通用规范(中英文版)
General specification for metal base copper-clad laminates for printed circuits
  GB/Z 34935-2017
油浸式智能化电力变压器技术规范(中英文版)
Technical specifications for oil-immersed smart power transformers
  GB/T 34808-2017
农业气象观测规范 大豆(中英文版)
Specification for agrometeorological observation—Soybean
  GB/T 34833-2017
专利代理机构服务规范(中英文版)
Specification for patent agency service
  GB/T 34979.2-2017
智能终端软件平台测试规范 第2部分:应用与服务(中英文版)
Test specification for smart terminal software platform—Part 2: Application and service
  GB/T 34992-2017
基于12.5kHz信道的时分多址(TDMA)专用数字集群通信系统 空中接口呼叫控制层技术规范(中英文版)
12.5kHz TDMA channel based professional digital trunking communication system—Technical specifications for call control layer of air interface
  GB/T 32419.6-2017
信息技术 SOA技术实现规范 第6部分:身份管理服务(中英文版)
Information technology—Specification for SOA technical implementation—Part 6: Identity management service
  GB/T 34991-2017
基于12.5kHz信道的时分多址(TDMA)专用数字集群通信系统 空中接口物理层及数据链路层技术规范(中英文版)
12.5kHz TDMA channel based professional digital trunking communication system—Technical specifications for physical layer and data link layer of air interface
  GB/T 22119-2017
信用服务机构 诚信评价业务规范(中英文版)
Credit service agency—Specifications for trustworthiness assessment business
  GB/T 34802-2017
农业社会化服务 土地托管服务规范(中英文版)
Agricultural service—Specification for land trust service
  GB/T 34798-2017
核酸数据库序列格式规范(中英文版)
Formats specifications of nucleotide sequence database
  GB/T 34981.2-2017
机构编制统计及实名制管理系统数据规范 第2部分:代码集(中英文版)
Specification of data for organization statistics and real-name management system—Part 2:Code set
  GB/T 34755-2017
家庭牧场生产经营技术规范(中英文版)
Specification of production and management for household ranch
  GB/T 17540-2017
台式激光打印机通用规范(中英文版)
General specification for desktop laser printers
  GB/T 34988-2017
信息技术 单色激光打印机用鼓粉盒通用规范(中英文版)
Information technology—General specification for toner cartridge for monochromatic laser printer
  GB/T 34907-2017
稠油蒸汽热采井套管技术条件与适用性评价方法(中英文版)
Technical specifications and fitness for service evaluation method for thermal well casing under cyclic steam stimulation process
  GB/T 34742-2017
木门窗用木材及人造板规范(中英文版)
Specifications for timber and wood-based materials in windows, door leaves and door frames
  GB/T 16857.2-2017
产品几何技术规范(GPS) 坐标测量机的验收检测和复检检测 第2部分: 用于测量线性尺寸的坐标测量机(中英文版)
Geometrical product specifications (GPS)—Acceptance and reverification tests for coordinate measuring machines (CMM)—Part 2: CMMs used for measuring linear dimensions
  GB/T 34364-2017
单板层积材包装箱设计规范(中英文版)
Specification for design of case with laminated veneer lumber (LVL)
  GB/T 34421-2017
滨海渔家乐经营与服务规范(中英文版)
Specification for operation and service of coastal fishery inn
  GB/T 34656-2017
海洋沉积物间隙生物调查规范(中英文版)
Specifications for marine sediment interstitial biota survey
  GB/T 34625-2017
金属及其他无机覆盖层 电气、电子和工程用金和金合金电镀层 技术规范和试验方法(中英文版)
Metallic and other inorganic coatings—Electrodeposited gold and gold alloy coatings for electrical, electronic and engineering purposes—Specification and test methods
  GB/T 34420-2017
海水浴场服务规范(中英文版)
Specification for beach service
  GB/T 34417-2017
服务信息公开规范(中英文版)
Specification for service information disclosure
  GB/T 34404-2017
非危液态化工产品逆向物流通用服务规范(中英文版)
General specifications for non-dangerous liquid chemical products reverse logistics service
  GB/T 34413-2017
职工基本养老保险待遇支付服务规范(中英文版)
Service specifications for payment of employee basic old-age insurance benefits
  GB/T 34409-2017
休闲主体功能区服务质量规范(中英文版)
Specification for service quality of recreation development priority zone
  GB/T 5019.12-2017
以云母为基的绝缘材料 第12部分:高透气性玻璃布补强环氧少胶云母带(中英文版)
Specification for insulating materials based on mica— Part 12:Glass fabric backup epoxy dry mica tape with high porosity
  GB/T 16563-2017
系列1集装箱 技术要求和试验方法 液体、气体及加压干散货罐式集装箱(中英文版)
Series 1 freight containers—Specification and testing—Tank containers for liquids, gases and pressurized dry bulk
  GB/T 34576-2017
燃气-蒸汽联合循环用汽轮机规范(中英文版)
Specifications for steam turbine used in gas-steam combined-cycle unit
  GB/T 34670-2017
技术转移服务规范(中英文版)
Specification for technology transfer services
  GB/T 34283-2017
国家突发事件预警信息发布系统管理平台与终端管理平台接口规范(中英文版)
Interface specifications of national emergencies early warning release system’s management platform and terminal management platform
  GB/T 34320-2017
六氟化硫电气设备用分子筛吸附剂使用规范(中英文版)
Specification for the use of molecular sieves in SF6 electrical apparatus
  GB/T 34294-2017
农村民居防御强降水引发灾害规范(中英文版)
Prevention specification of disasters caused by intense rainfall for rural buildings
  GB/T 26683-2017
地面数字电视接收器通用规范+(第1号修改单)(中英文版)
General specification for digital terrestrial set-top box+(No.1 modification sheet)
  GB/T 32419.5-2017
信息技术 SOA技术实现规范 第5部分:服务集成开发(中英文版)
Information technology—SOA technology implementation specification—Part 5: Development of service integration
  GB/T 18948-2017
内燃机冷却系统用橡胶软管和纯胶管 规范(中英文版)
Rubber hoses and tubing for cooling systems for internal-combustion engines—Specification
  GB/T 34300-2017
城乡社区网格化服务管理规范(中英文版)
Specification of grid-based services and management for urban and rural communities
  GB/T 34083-2017
中文语音识别互联网服务接口规范(中英文版)
Specification of programming interface for Chinese speech recognition internet service
  GB/T 34078.1-2017
基于云计算的电子政务公共平台总体规范 第1部分:术语和定义(中英文版)
General specification of electronic government common platform based on cloud computing—Part 1: Terminology and definition
  GB/T 34077.1-2017
基于云计算的电子政务公共平台管理规范 第1部分:服务质量评估(中英文版)
Management specification of electronic government common platform based on cloud computing—Part 1:Evaluation specification for service quality
  GB/T 34080.2-2017
基于云计算的电子政务公共平台安全规范 第2部分:信息资源安全(中英文版)
Security specification of electronic government common platform based on cloud computing—Part 2: Information resources security
  GB/T 34079.3-2017
基于云计算的电子政务公共平台服务规范 第3部分:数据管理(中英文版)
Service specification of electronic government common platform based on cloud computing—Part 3:Data management
  GB/T 19668.4-2017
信息技术服务 监理 第4部分:信息安全监理规范(中英文版)
Information technology service—Surveillance—Part 4: Information security surveillance specification
  GB/T 19668.2-2017
信息技术服务 监理 第2部分:基础设施工程监理规范(中英文版)
Information technology service—Surveillance—Part 2:Infrastructure project surveillance specification
  GB/T 34032-2017
船舶与海上技术 管路系统衬垫密封机械接头及其附件 性能规范(中英文版)
Ships and marine technology—Gasketed mechanical couplings and its fittings for use in piping systems—Performance specification
  GB/T 34080.1-2017
基于云计算的电子政务公共平台安全规范 第1部分:总体要求(中英文版)
Security specifications of electronic government common platform based on cloud computing—Part 1: General requirements
  GB/T 33776.602-2017
林业物联网 第602部分:传感器数据接口规范(中英文版)
Forestry internet of things—Part 602: Interface specification of sensor data
  GB/T 34145-2017
中文语音合成互联网服务接口规范(中英文版)
Specification of programming interface for Chinese speech synthesis internet service
  GB/T 4588.4-2017
刚性多层印制板分规范(中英文版)
Sectional specification for rigid multilayer printed boards
  GB/T 34117-2017
核电厂常规岛设备汽水分离再热器规范(中英文版)
Specifications for moisture separator reheaters in conventional island of nuclear power plant
  GB/T 34122-2017
220kV~750kV电网继电保护和安全自动装置配置技术规范(中英文版)
Technical specification for configuration of relaying protection and security automatic equipment of AC 220kV~750kV grid
  GB/T 19668.3-2017
信息技术服务 监理 第3部分:运行维护监理规范(中英文版)
Information technology service—Surveillance—Part 3:Operations and maintenance surveillance specification
  GB/T 34030-2017
船舶和海上技术 船用热固树脂玻璃纤维管及附件技术要求(中英文版)
Ships and marine technology—Standard specification for thermosetting resin fiberglass pipe and fittings to be used for marine applications
  GB/T 33987-2017
S/X/Ka三频低轨遥感卫星地面接收系统技术要求(中英文版)
Technical specifications of S/X/Ka tri-band ground receiving system for LEO remote sensing satellite
  GB/T 33936-2017
矿井提升机 回收评估规范(中英文版)
Mine hoists—Assessment specification for recycle
  GB/T 33854-2017
基于公用电信网的宽带客户网络联网技术要求 电力线联网(中英文版)
Networking specification for broadband customer network based on public telecommunication network—PLC networking
  GB/T 33851-2017
信息技术 系统间远程通信和信息交换 基于双载波的无线高速率超宽带物理层测试规范(中英文版)
Information technology-Telecommunications and information exchange between systems-Dual carrier based wireless high rate ultra wideband physical layer test specification
  GB/T 33780.2-2017
基于云计算的电子政务公共平台技术规范 第2部分:功能和性能(中英文版)
Technical specification of electronic government common platform based on cloud computing—Part 2: Functions and performances
  GB/T 33780.3-2017
基于云计算的电子政务公共平台技术规范 第3部分:系统和数据接口(中英文版)
Technical specification of electronic government common platform based on cloud computing—Part 3: Interface between system and data
  GB/T 9813.3-2017
计算机通用规范 第3部分:服务器(中英文版)
General specification for computer—Part 3:Server
  GB/T 33780.6-2017
基于云计算的电子政务公共平台技术规范 第6部分:服务测试(中英文版)
Technical specification of electronic government common platform based on cloud computing—Part 6:Service tests
  GB/T 33780.1-2017
基于云计算的电子政务公共平台技术规范 第1部分:系统架构(中英文版)
Technical specification of electronic government common platform based on cloud computing—Part 1: System architecture
  GB/T 33815-2017
铁矿石采选企业污水处理技术规范(中英文版)
Technical specification for wastewater treatment of iron ore mining and mineral processing enterprises
  GB/T 33776.603-2017
林业物联网 第603部分:无线传感器网络组网设备通用规范(中英文版)
Forestry internet of things—Part 603: General specification of devices in wireless sensor networks
  GB/T 33696-2017
陆-气和海-气通量观测规范(中英文版)
Specification for land surface-atmosphere and air-sea flux observations
  GB/T 2667-2017
衬衫规格(中英文版)
Specifications for shirts and blouses
  GB/T 33604-2017
电力系统简单服务接口规范(中英文版)
Simple service interface specification for power system
  GB/T 33667-2017
高校毕业生就业指导服务规范(中英文版)
Specification of career guidance service for university and college graduates
  GB/T 33573-2017
集装箱安全智能锁阅读器通用技术规范(中英文版)
General technical specification of reader of secure and smart Lock for container
  GB/T 33703-2017
自动气象站观测规范(中英文版)
Specifications observating for automatic weather station
  GB/T 33694-2017
自动气候站观测规范(中英文版)
Specification observating for automatic climatological station
  GB/T 33697-2017
公路交通气象监测设施技术要求(中英文版)
Specification for meteorological observation facilities of highway traffic
  GB/T 33685-2017
陆上地震勘探数据处理技术规程(中英文版)
Technical specifications for land seismic exploration data processing
  GB/T 33659-2017
农贸市场计量管理与服务规范(中英文版)
Measurement management and service specifications for markets of agricultural products
  GB/T 33700-2017
地基导航卫星遥感水汽观测规范(中英文版)
Specification for the ground-based GNSS water vapor remote sensing observation
  GB/T 33560-2017
信息安全技术 密码应用标识规范(中英文版)
Information security technology—Cryptographic application identifier criterion specification
  GB/T 33748-2017
农业社会化服务 农业科技信息服务供给规范(中英文版)
Agricultural service—Supplying specification of agricultural science and technology information service
  GB/T 33716.1-2017
电子存档 第1部分:为保存电子信息针对信息系统设计和运行的规范(中英文版)
Electronic archiving—Part 1:Specification concerning the design and the operation of an information system for electronic information preservation
  GB/T 33760-2017
基于项目的温室气体减排量评估技术规范 通用要求(中英文版)
Technical specification at the project level for assessment of greenhouse gas emission reductions—General requirements
  GB/T 33755-2017
基于项目的温室气体减排量评估技术规范 钢铁行业余能利用(中英文版)
Technical specification at the project level for assessment of greenhouse gas emission reductions—Utilization of waste energy in iron and steel industry
  GB/T 33583-2017
陆上石油地震勘探资料采集技术规程(中英文版)
Technical specifications for seismic data acquisition on land
  GB/T 33756-2017
基于项目的温室气体减排量评估技术规范 生产水泥熟料的原料替代项目(中英文版)
Technical specification at the project level for assessment of greenhouse gas emission reductions—Alternative of raw materials in cement clinker production industry
  GB/T 33550-2017
旋涡式自吸电泵 性能评价规范(中英文版)
Vortical self-priming motor-pumps—Specification for performance evaluation
  GB/T 33551-2017
轻小型柴油机-泵直联机组 性能评价规范(中英文版)
Portable small-type diesel engine-pumps direct-linking unit—Specification for performance evaluation
  GB/T 33542-2017
多效蒸馏海水淡化装置通用技术要求(中英文版)
General specifications for multi-effect distillationseawater desalination plant
  GB/T 25724-2017
公共安全视频监控数字视音频编解码技术要求(中英文版)
Technical specifications for surveillance video and audio coding for public security
  GB/T 33530-2017
人力资源外包服务规范(中英文版)
Specifications for human resource outsourcing service
  GB/T 33463.1-2017
钢铁行业海水淡化技术规范 第1部分:低温多效蒸馏法(中英文版)
Technology specification of seawater desalination for iron and steel industry—Part 1: Low temperature multiple effect distillation
  GB/T 33509-2017
机械密封通用规范(中英文版)
General specification for mechanical seals
  GB/T 35282-2017
信息安全技术 电子政务移动办公系统安全技术规范(中英文版)
Information security technology—Security technology specifications of mobile e-government system
  GB/T 35283-2017
信息安全技术 计算机终端核心配置基线结构规范(中英文版)
Information security techniques—Specification for the structure of desktop core configuration baseline
  GB/T 35234-2017
地面气象观测规范 冻土(中英文版)
Specifications for surface meteorological observation—Frozen soil
  GB/T 35572-2017
大洋富钴结壳资源勘查规范(中英文版)
Specification for oceanic cobalt-rich ferromanganese exploration
  GB/T 35291-2017
信息安全技术 智能密码钥匙应用接口规范(中英文版)
Information security technology—Cryptography token application interface specification
  GB/T 18015.8-2017
数字通信用对绞或星绞多芯对称电缆 第8部分:具有1200MHz及以下传输特性的对绞或星绞对称电缆 工作区布线电缆分规范(中英文版)
Multicore and symmetrical pair/quad cables for digital communications—Part 8: Symmetrical pair/quad cables with transmission characteristics up to 1200MHz-Work area wiring sectional specification
  GB/T 35223-2017
地面气象观测规范 气象能见度(中英文版)
Specifications for surface meteorological observation—Meteorological visibility
  GB/T 35289-2017
信息安全技术 电子认证服务机构服务质量规范(中英文版)
Information security technology—Specification on the service quality of certification authority
  GB/T 35288-2017
信息安全技术 电子认证服务机构从业人员岗位技能规范(中英文版)
Information security technology—Specification on the job skills of certificate authority employees
  GB/T 35286-2017
信息安全技术 低速无线个域网空口安全测试规范(中英文版)
Information security technology—Air-interface security test specification for low-rate wireless personal area networks
  GB/T 17850.7-2017
涂覆涂料前钢材表面处理 喷射清理用非金属磨料的技术要求 第7部分:熔融氧化铝(中英文版)
Preparation of steel substrates before application of paints and related products—Specifications for non-metallic blast-cleaning abrasives—Part 7: Fused aluminium oxide
  GB/T 35227-2017
地面气象观测规范 风向和风速(中英文版)
Specifications for surface meteorological observation—Wind direction and wind speed
  GB/T 35559-2017
技术产权交易服务流程规范(中英文版)
Specification for technology property right exchange service process
  GB/T 35461-2017
水泥生产企业能源计量器具配备和管理要求(中英文版)
Specification for equipping and managing of the measuring instrument of energy in the cement production enterprise
  GB/T 35228-2017
地面气象观测规范 降水量(中英文版)
Specifications for surface meteorological observation—Precipitation
  GB/T 35141-2017
插入式红外辐射测温仪技术规范(中英文版)
Specifications for insertion type infrared radiation thermometer
  GB/T 35236-2017
地面气象观测规范 地面状态(中英文版)
Specifications for surface meteorological observation—Ground state
  GB/T 35225-2017
地面气象观测规范 气压(中英文版)
Specifications for surface meteorological observation—Atmospheric pressure
  GB/T 35221-2017
地面气象观测规范 总则(中英文版)
Specifications for surface meteorological observation—General
  GB/T 35233-2017
地面气象观测规范 地温(中英文版)
Specifications for surface meteorological observation—Soil temperature
  GB/T 35222-2017
地面气象观测规范 云(中英文版)
Specifications for surface meteorological observation—Cloud
  GB/T 35237-2017
地面气象观测规范 自动观测(中英文版)
Specifications for surface meteorological observation—Automatic observation
  GB/T 35273-2017
信息安全技术 个人信息安全规范(中英文版)
Information security technology—Personal information security specification
  GB/T 35555-2017
温泉服务基本规范(中英文版)
Basic Specification for hot spring service
  GB/T 19668.03-2017
信息技术服务 监理 第3部分:运行维护监理规范(中英文版)
Information technology service—Surveillance—Part 3:Operations and maintenance surveillance specification
  GB/T 35400-2017
燃油加油机计量检定移动实验室通用技术规范(中英文版)
General technical specification for mobile laboratory of fuel dispensers metrological verification
  GB/T 18015.7-2017
数字通信用对绞或星绞多芯对称电缆 第7部分:具有1200MHz及以下传输特性的对绞或星绞对称电缆 数字及模拟通信电缆分规范(中英文版)
Multicore and symmetrical pair/quad cables for digital communications—Part 7: Symmetrical pair/quad cables with transmission characteristics up to 1 200MHz—Sectional specification for digital and analog communication cables
  GB/T 17838-2017
船舶海洋水文气象辅助测报规范(中英文版)
Specification for the ships’ auxiliary marine hydrology and metereological observations
  GB/T 35791-2017
中性点非有效接地系统单相接地故障行波选线装置技术要求(中英文版)
Specification for single-phase-to-ground fault feeder selection device based on traveling waves for neutral non-effectively grounded system
  GB/T 35769-2017
卫星导航定位基准站网服务规范(中英文版)
Specification for service of the reference stations using global navigation satellite system
  GB/T 35614-2017
海洋牧场休闲服务规范(中英文版)
Specification for leisure service of marine ranching
  GB/T 35557-2017
滨海景区海上运动救援服务规范(中英文版)
Specification of rescue service for marine sports in coastal attractions
  GB/T 35587-2017
制造过程物联集成平台应用实施规范(中英文版)
Application and implementation specification of integrated platform for internet of things in manufacturing processes
  GB/T 35766-2017
地图导航定位产品通用规范(中英文版)
General specification for GNSS navigation product based map
  GB/T 35276-2017
信息安全技术 SM2密码算法使用规范(中英文版)
Information security technology—SM2 cryptographic algorithm usage specification
  GB/T 2668-2017
单服、套装规格(中英文版)
Specifications for single,layer apparels and clothing sets
  GB/T 35768-2017
卫星导航定位基准站网服务管理系统规范(中英文版)
Specification for service and management system of the reference stations using global navigation satellite system
  GB/T 35130-2017
面向食品制造业的射频识别系统 射频标签信息与编码规范(中英文版)
RFID system used in food manufacturing—RF tag information and coding specification
  GB/T 35180-2017
商用车空气悬架推力杆橡胶铰接头技术规范(中英文版)
Technical specifications for rubber bushing used for torque rod of air suspension for commercial vehicle
  GB/T 35649-2017
突发事件应急标绘符号规范(中英文版)
Specification for emergency response plotting symbols
  GB/T 15844-2017
移动通信专业调频收发信机通用规范(中英文版)
General specification for professional radio transceiver employing F3E emission in the mobile services
  GB/T 34125-2017
电力系统继电保护及安全自动装置户外柜通用技术条件(中英文版)
General specification for outdoor cabinet with relaying protection and security automatic equipment of power system
  GB/T 35224-2017
地面气象观测规范 天气现象(中英文版)
Specifications for surface meteorological observation—Weather phenomena
  GB/T 35231-2017
地面气象观测规范 辐射(中英文版)
Specifications for surface meteorological observation—Radiation
  GB/T 35275-2017
信息安全技术 SM2密码算法加密签名消息语法规范(中英文版)
Information security technology—SM2 cryptographic algorithm encrypted signature message syntax specification
  GB/T 35235-2017
地面气象观测规范 电线积冰(中英文版)
Specifications for surface meteorological observation—Wire icing
  GB/T 35122-2017
制造过程物联的数字化模型信息表达规范(中英文版)
Information expression specification for digital model of internet of things in manufacturing processes

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