GB/T 39798-2021.Test methods for optical properties of glass used on multiple un...

国家标准2023.08.06

YD/T 2452-2013.Technical Specification for MPLS LSP Detection.1范围YD/T 2452规定了在多协...

行业标准2023.08.06

TB 10027-2012.Code for Unfavorable Geological Condition Investigation of Railway...

行业标准2023.08.06

GB/T 39797-2021.Test method for surface tension of glass melt-Sessile drop metho...

国家标准2023.08.06

GB/T 39749-2021.Evaluation method and graduation for energy efficiency performan...

国家标准2023.08.06

GB/T 39796-2021.Test method for airbone sound insulating properties of glass use...

国家标准2023.08.06

GB/T 39755.1-2021.Elctronic records management capability system-Part 1: General...

国家标准2023.08.06

TB 10038-2012.Code for Special Soil and Rock Investigation of Railway Engineerin...

行业标准2023.08.06

TB/T 846-91.1主题内容与适用范围TB/T 846规定了方孔螺堵的规格参数，技术条件和标记方法。TB/T 846适用于公称压力小于等于1.6MPa的机...

行业标准2023.08.06

TB/T 1347-2012.Tamping tool.1范围TB/T 1347规定了捣固镐(以下简称“捣镐")的产品型式和基本参数、要求、检验方法、检验规则以...

行业标准2023.08.06