
Plastics- Polyketone(PK) moulding and extrusion materials- Part1: Designation system and basis for specifications (ISO21970-1:2018); German version ENISO21970-1:2018
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
EN ISO 21970-1 : 2018 - Identical
ISO 21970-1:2018 - Identical
EN ISO 21970-1 : 2018 - Identical
ISO 21970-1:2018 - Identical
ISO 21970-1 : 2019 - Identical
EN ISO 21970-1:2019 - Identical
ISO 21970-1 : 2019 - Identical