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  • IEC/TR 62001-1-2021High-voltage direct current (HVDC) systems - Guidance to the specification and design eva...2022-03-31
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  • GB/T 40064-2021节能技术评价导则Assessment guidelines for energy saving technology2022-03-31
  • ISO 15864-2021Space systems — General test methods for spacecraft, subsystems and units2022-03-31
  • PD ISO/IEC TR 29119-6-2021Software and systems engineering. Software testing. Guidelines for the use of ISO/...2022-03-31
  • ISO 22941-2021Rubber sheets for livestock — Dairy cattle — Specification2022-03-31
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  • BS ISO 12614-18-2021Road vehicles. Liquefied natural gas (LNG) fuel system components. Gas temperature senso...2022-03-31
  • T/ZZB 2388-2021耐磨针织绒手套2022-03-31
  • VDI 2015 Blatt 1-2021Powder coating of MDF and wood-based materials2022-03-31
  • ASTM D4625-2021Standard Test Method For Middle Distillate Fuel Storage Stability At 43 °C (110 °F)2022-03-31
  • GB/T 11362-2021同步带传动 节距型号MXL,XXL,XL,L,H,XH和XXH梯形齿同步带额定功率和传动中心距计算Synchronous belt driv...2022-03-31
  • NF ISO 22172-2-2021Agricultural vehicles - Standardized access to repair and maintenance information (RMI) -...2022-03-31
  • PD ISO/TS 21236-2-2021Nanotechnologies. Clay nanomaterials. Specification of characteristics and measurement...2022-03-31
  • ASTM C1819-2021Standard Test Method for Hoop Tensile Strength of Continuous Fiber-Reinforced Advanced Cerami...2022-03-31
  • GB/T 40094.4-2021电子商务数据交易 第4部分:隐私保护规范Electronic commerce data transaction.Part 4:Privacy prot...2022-03-31
  • JJF 1912-2021太阳镜焦度检测装置校准规范Calibration Specification for Testing Instruments of Sunglasses Power...2022-03-31
  • T/ZZB 2143-2021扭丝刷2022-03-31
  • ASTM C1806-2021Standard Test Method for Measuring the Flow Rate of Aerosol Foam Sealants2022-03-31
  • ASTM C1259-2021Standard Test Method for Dynamic Young’s Modulus, Shear Modulus, and Poisson’s Ratio for Ad...2022-03-31
  • DIN 65314-2021Aerospace series - Countersunk head bolts, close tolerance, with internal offset cruciform rib...2022-03-31