
Plastics - Polyketone (PK) moulding and extrusion materials - Part 1: Designation system and basis for specifications (ISO 21970-1:2019); German version EN ISO 21970-1:2019
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
EN ISO 21970-1:2019 - Identical
ISO 21970-1:2019 - Identical
ISO 21970-1 : 2019 - Identical
EN ISO 21970-1:2019 - Identical
ISO 21970-1 : 2019 - Identical