GB/T 39311-2020 热塑性软管和软管组合件 液压用钢丝或合成纱线增强单一压力型 规范
GB/T 39311-2020.Thermoplastic hoses and hose assemblies-Wire or synthetic yarn r...
国家标准2023.08.06
GB/T 39311-2020.Thermoplastic hoses and hose assemblies-Wire or synthetic yarn r...
国家标准2023.08.06
GB/T 39532-2020.Guidance for measurement and verification of energy performance....
国家标准2023.08.06
GB/T 39023-2020.Writing and marking instruments-Specification for caps to reduce...
国家标准2023.08.06
GB/T 39374-2020.Leather-Physical and mechanical tests-Determination of bending f...
国家标准2023.08.06
GB/T 19017-2020.Quality management-Guidelines for configuration management.1范围GB...
国家标准2023.08.06
GB/T 39375-2020.Leather-Physical and mechanical tests-Determination of dimension...
国家标准2023.08.06
GB/T 39507-2020.Leather-Physical and mechanical tests-Determination of abrasion...
国家标准2023.08.06
GB/T 39369-2020.Leather-Physical and mechanical tests-Determination of water vap...
国家标准2023.08.06
GB/T 39368-2020.Leather-Physical and mechanical tests-Determination of flex resi...
国家标准2023.08.06
GB/T 39372-2020.Leather-Physical and mechanical tests-Determination of percentag...
国家标准2023.08.06