GB/T 4689. 20-1996 皮革涂层粘着牢度测定方法
GB/T 4689. 20-1996.Leather- Determination of adhesion of finish.1范围GB/T 4689. 20...
国家标准2023.07.20
GB/T 4689. 20-1996.Leather- Determination of adhesion of finish.1范围GB/T 4689. 20...
国家标准2023.07.20
GB/T 4689. 21-1996.Leather - Determination of absorption of water.5试样用模刀切取试样,切时粒...
国家标准2023.07.20
GB/T 4689. 22-1996.Leather- Determination of air permeability.4.2 秒表:精度0.1 s.4.3...
国家标准2023.07.20
GB 9819-1988.Fundamental dinension series for lever escapet neat.1主题内容与适用范围GB 98...
国家标准2023.07.20
GB/T 9983-2004.Industrial sodium tripolyphosphate.1范围GB/T 9983规定了工业三聚磷酸钠的产品分类、技术...
国家标准2023.07.20
GB/T 9984.1-2004.The measurement of whiteness for industrial sodium tripolyphosp...
国家标准2023.07.20
GB/T 9984.2-2004.Sodium tripolyphosphate for industrial use-Determination of tot...
国家标准2023.07.20
GB/T 9984.3-2004.Sodium tripolyphosphate for industrial use- Separation by ion e...
国家标准2023.07.20
GB/T 9984.5-2004.Sodium tripolyphosphate and sodium pyrophosphate for industrial...
国家标准2023.07.20
GB/T 9984.6-2004.Sodium tripolyphosphate for industrial use-Determination of iro...
国家标准2023.07.20