GB/T 1845.2-2021塑料聚乙烯(PE)模塑和挤出材料第2部分:试样制备和性能测定标准
英文:Plastics—Polyethylene (PE) moulding and extrusion materials—Part 2:Preparation of test specimens and determination of...
英文:Plastics—Polyethylene (PE) moulding and extrusion materials—Part 2:Preparation of test specimens and determination of...