GB/T 39327-2020 船用发动机湿式排气系统用橡胶和塑料软管 规范
GB/T 39327-2020.Rubber and plastics hoses for marine-engine wet-exhaust systems-...
国家标准2023.08.06
GB/T 39327-2020.Rubber and plastics hoses for marine-engine wet-exhaust systems-...
国家标准2023.08.06
GB/T 39517.1-2020.Tractors and machinery for agriculture and forestry-Test proce...
国家标准2023.08.06
GB/T 10395.26-2020.Agricultural and forestry machinery-Safety-Part 26:Large rota...
国家标准2023.08.06
GB/T 39248-2020.Thermoplastic multi-layer (non-vulcanized) hoses and hose assemb...
国家标准2023.08.06
GB/T 39313-2020.Rubber hoses and hose assemblies-Compact wire-braid-reinforced h...
国家标准2023.08.06
GB/T 39309-2020.Rubber hoses and hose assemblies-Wire-or textile-reinforced sing...
国家标准2023.08.06
GB/T 39385-2020.Plastics piping and ducting systems-Thermoplastics pipes一Determi...
国家标准2023.08.06
GB/T 39521-2020.Tractors and machinery for agriculture-Auto-guidance systems for...
国家标准2023.08.06
GB/T 39843-2021.Electronic characteristic measurements-Local critical current de...
国家标准2023.08.06
GB/T 39744-2021.General requirements of mechanical product electronic manual bas...
国家标准2023.08.06