
Plastics - Polypropylene (Pp) Moulding And Extrusion Materials - Part 1: Designation System And Basis For Specifications
出版:Association Francaise de Normalisation

專家解讀視頻
Plastics - Polypropylene (Pp) Moulding And Extrusion Materials - Part 1: Designation System And Basis For Specifications
出版:Association Francaise de Normalisation
專家解讀視頻