China 'GB/T 37997-2019
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 37997-2019
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
Issued Date:
Implemented Date:
Issued by:
The Standardization Administration of the People's Republic of China
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"GB/T 37997-2019" standard !
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