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  • LY/T 3261-2021金裳凤蝶和裳凤蝶人工繁育技术规范Technical regulations for the artificial rearing of Troides ae...2022-03-31
  • PD CEN ISO/TS 12025-2021Nanomaterials. Quantification of nano-object release from powders by generation of a...2022-03-31
  • DIN ISO 501-2021Hard coal - Determination of the crucible swelling number (ISO 501:2012)2022-03-31
  • GA/T 1783-2021公安视频图像信息数据库测试规范Testing specifications for public security video and image infor...2022-03-31
  • DIN EN 16351-2021Timber structures - Cross laminated timber - Requirements; German version EN 16351:20212022-03-31
  • ISO 19475-2021Document management — Minimum requirements for the storage of documents2022-03-31
  • ASTM D7470-2021Standard Practice for Evaluating Elevated Temperature Performance of End-Jointed Lumber Studs2022-03-31
  • DIN ISO 4309-2021Cranes - Wire ropes - Care and maintenance, inspection and discard (ISO 4309:2017)2022-03-31
  • QB/T 2384-2021木制写字桌Wooden writing desk2022-03-31
  • ISO/TS 23818-2-2021现有管道修复用塑料管道系统的符合性评定 第2部分:树脂纤维复合材料Assessment of conformity ...2022-03-31
  • ASTM D6427-2021Standard Practice for Handling, Transportation, and Storage of HFC-236fa, 1,1,1,3,3,3-Hexaflu...2022-03-31
  • T/ZZB 2385-2021再生铸造铝合金锭2022-03-31
  • ASTM D8281/D8281M-2021用乙二醇测定岩石中用于侵蚀控制的膨胀粘土的标准试验方法Standard Test Method for Determi...2022-03-31
  • DIN EN 16282-3-2021Equipment for commercial kitchens - Components for ventilation in commercial kitchens - P...2022-03-31
  • BS ISO 5116-3-2021Improving transparency in financial and business reporting. Harmonization topics. Mapping ...2022-03-31
  • ASTM C926-2021Standard Specification for Application of Portland Cement-Based Plaster2022-03-31
  • IEC 61666-2010+Amd 1-2021Industrial systems, installations and equipment and industrial products - Identific...2022-03-31
  • BS ISO 7905-1-2021Plain bearings. Bearing fatigue. Plain bearings in test rigs and in applications under con...2022-03-31
  • ISO/IEC 30137-4-2021信息技术 视频监视系统中生物测定学的应用 第4部分:地面实况和视频注释程序Information tech...2022-03-31
  • ASTM F3133-2021Standard Practice for Classification, Design, Manufacture, Construction, Maintenance, and Ope...2022-03-31
  • DIN EN 1804-2-2021Machines for underground mines - Safety requirements for hydraulic powered roof supports -...2022-03-31
  • ASTM C1068-2021Standard Guide for Qualification of Measurement Methods by a Laboratory Within the Nuclear In...2022-03-31
  • ASTM D2259-2021Standard Test Method for Shrinkage of Yarns2022-03-31