20资源列表

[国外标准] BS EN 60749-20-1-2009 Semiconductor devices – Mechanical and climatic test methods — Part 20-1

[国外标准] BS EN 60745-2-20-2003 Hand-held motor-operated electric tools - Safety - Part 2-20 Particular requir

[国外标准] Bs EN 60598-2-20-1997 A1-1998 Luminaires - I Part 2 Particular requirements - Section 2.20 Lighting

[国外标准] BS EN 13108-20-2006 Bituminous mixtures — Material specifications — Part 20 Type Testing

[国外标准] BS IEC TS 60034-20-1-2002 Rotating electrical machines Control motors Stepping motors

[国外标准] BS IEC 60748-2-20-2008 Semiconductor devices. Integrated circuits. Digital integrated circuits. Fami

[国外标准] BS EN 61558-2-20-2001 Safety of power transformers, power supply units and similar devices — Part 2-

[国外标准] AS NZS 60745.2.20-2009 Hand-held motor-operated electric tools—Safety Part 2.20 Particular requireme

[国外标准] AS NZS 60598.2.20-2002 Luminaires-Part 2.20 Particular requirements-Lighting chains (IEC 60598-2-201

[国外标准] EN 301 489-20-2002 Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic C

[国外标准] CEI EN 60617-8 (1998) [CEI 3-20] Segni grafici per schemi Parte 8 Strumenti di misura, lampade e dis

[国外标准] AWS A5.20-95 Specification for Carbon Steel Electrode for Flux Cored Arc Welding

[国外标准] BS 476-20 1987﹢A1-1990 Fire tests on building materials and structures. Method for determination of

[国外标准] BS 3424-20-1987 Testing coated fabrics. Method 23. Method for determination of dimensional changes o

[国外标准] J60598-2-20 (H14)

[国外标准] JIS C60695-11-20-2006 Fire hazard testing --Part 11-20：Test flames --500 W flame test methods

[国外标准] JIS C5402-20-2-2005 Electromechanical components for electronic equipment -- Basic testing procedure

[国外标准] JIS C5402-16-20-2002 Mechanical tests on contacts and terminations -- Test 16t- Mechanical strength

[国家标准] GBZ 20-2019 职业性接触性皮炎的诊断

[国外标准] JIS K0450-20-10-2006 Testing method for alkyl phenols in industrial water and wastewater

[其他未分类标准] GJB/Z 20-1991 尺寸链计算书

[化工资料] 20万吨年丙烯酸及酯项目实施策略

[其他未分类标准] 20 食品添加剂 二氢香豆素