GB/T 1845.1-2016塑料聚乙烯(PE)模塑和挤出材料第1部分:命名系统和分类基础国家标准
英文:Plastics—Polyethylene(PE) moulding and extrusion materials—Part 1: Designation system and basis for specifications GB...
英文:Plastics—Polyethylene(PE) moulding and extrusion materials—Part 1: Designation system and basis for specifications GB...