Plastics - Polyketone (PK) moulding and extrusion materials - Part 1: Designation system and basis for specifications (ISO/DIS 21970-1:2017); German and English version prEN ISO 21970-1:2017
Plastics - Polyketone (PK) moulding and extrusion materials - Part 1: Designation system and basis for specifications (ISO/FDIS 21970-1:2019); German and English version prEN ISO 21970-1:2019— 17 стр.
Plastics - Polyketone (PK) moulding and extrusion materials - Part 1: Designation system and basis for specifications (ISO 21970-1:2018); German version EN ISO 21970-1:2018— 17 стр.