专利 一种金属型静密封密封效果的综合评价方法
ISO 3926 1980 Shipbuilding — Inland navigation — Couplings for oil and fuel recept.pdf
ISO IEC 9314-7 1998 Information technology — Fibre Distributed Data Interface (FDDI) — Part 7 Physical layer Protocol (PHY-2.pdf
ISO 18857-2 2009 Water quality — Determination of selected alkylphenols — Part 2 Gas chromatographic-mass spectrometric determination of alkylphenols, their ethoxylates and bisphenol A in non.pdf
ISO 20310 2018 Thermal insulation for building equipment and industrial installations Aluminosilicate wool products Specification.pdf
ISO 23019 2022 Railway applications — Driving simulator for drivers' training.pdf
ISO 11104 2011 Space data and information transfer systems — Time code formats.pdf
ISO 24285 2022 Thermal insulation for building equipment and industrial installations — Cellular glass products — Specification.pdf
ISO 11943 2021 Hydraulic fluid power — Online automatic particle-counting systems for liquids — Methods of calibration and validation.pdf
ISO 21621 2021 Tourism and related services — Traditional restaurants — Visual aspects, decoration and services.pdf
ISO 6743-2 1981 Lubricants industrial oils and related products (class L) Classification Part 2 Family F (Spindle bearings bearings and associated clutches).pdf
GB-T 2-2016 紧固件 外螺纹零件末端.pdf
GB-T 20377-2006 变性淀粉 乙酰化二淀粉己二酸酯中己二酸含量的测定 气相色谱法.pdf
GB-T 17031.2-1997 纺织品 织物在低压下的干热效应 第2部分 受干热的织物尺寸变化的测定.pdf
GB-T 11365-2019 锥齿轮 精度制.pdf
GB-T 22888-2021 皮革 物理和机械试验 表面涂层低温脆裂温度的测定.pdf
GB-T 3535-2006 石油产品倾点测定法.pdf
GB-T 13786-1992 棉花分级室的模拟昼光照明.pdf
GB-T 11150-2001 电能表检验装置.pdf
GB-T 19719-2005 首饰 镍释放量的测定 光谱法.pdf
GB-T 27011-2019 合格评定 认可机构要求.pdf