
Plastics - Polyketone (PK) moulding and extrusion materials - Part 1: Designation system and basis for specifications (ISO 21970-1:2019)
出版:Standardiserings-Kommissionen I Sverige

專家解讀視頻
Plastics - Polyketone (PK) moulding and extrusion materials - Part 1: Designation system and basis for specifications (ISO 21970-1:2019)
出版:Standardiserings-Kommissionen I Sverige
專家解讀視頻