Home / Standards / GB/T 37997-2019 GB/T 37997-2019 Active Thermoplastic multi-layer (non-vulcanized) hoses and hose assemblies for the transfer of hydrocarbons, solvents and chemicals—Specification 输送烃类、溶剂和化学品用多层热塑性塑料(非硫化)软管及软管组合件 规范 Standard Type GBT ICS 83.140.40 CCS G42 Status 现行 Issue Date 2019-08-30 Implementation 2020-07-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A