
Prefabricated directly buried insulating plastic-steel-plastic composite pipes with polyurethane(PUR) foamed-plastics and high density polyethylene(PE) casing pipes
NORM herausgegeben am 28.12.2018
Designation standards: GB/T 37263-2018
Publication date standards: 28.12.2018
Country: Chinese technical standard
Kategorie: Technische Normen GB