Prevailing torque hexagon regular nuts (with non-metallic insert) - Product grades A and B(ISO/DIS 7040:2016); German and English version prEN ISO 7040:2016
Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing - Part 4: Valves (ISO 16486-4:2016)— 22 стр.