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  • GB/T 19621-2004 城市軌道交通輕軌工程勞動(dòng)定員定額 Labor force quota for lightrail engineering in city transit...2023-08-22
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  • ETSI TS 127 060-2018 Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecomm...2023-08-22
  • DIN EN 10028-6-2017 Flat products made of steels for pressure purposes - Part 6: Weldable fine grain steels...2023-08-21
  • GB/T 36249-2018 基于模型的航空裝備研制技術(shù)數(shù)據(jù)包 Model based aviation equipment research and development&mda...2023-08-21
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  • ETSI TS 129 002/3-2019 Digital Cellular Telecommunications System (Phase 2+) (Gsm); Universal Mobile Teleco...2023-08-21
  • DB31/ 329.10-2008 重點(diǎn)單位重要部位安全技術(shù)防范系統(tǒng)要求 第10部分:黨政機(jī)關(guān)2023-08-21
  • IEC 60721-2-7-2018 環(huán)境條件分類--第2-7部分:自然界出現(xiàn)的環(huán)境條件--動(dòng)物與植物 Classification of environmental ...2023-08-21
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  • EN 4604-009-2017 Aerospace series. Cable,electrical,for signal transmission. Part 009:Cable,coaxial,light ...2023-08-21
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  • CB 20203-2016 潛艇消聲瓦敷設(shè)工藝 Laying technical for submarine anechoic tile2023-08-21
  • GB/T 19749.2-2022 耦合電容器及電容分壓器 第2部分:接于線與地之間用于電力線路載波(PLC)的直流或交流單相耦合電容器 ...2023-08-21
  • GB/T 17936-2022 卡口燈座 Bayonet lampholders2023-08-21
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  • DB12/ 046.25-2011 產(chǎn)品單位產(chǎn)量綜合能耗計(jì)算方法及限額 第25部分:滌綸短絲 Calculation method and stipulation of ...2023-08-21