Cylindrical helical springs made from round wire and bar - Calculation and design - Part 1: Compression springs; German version EN 13906-1:2002— 35 стр.
Rubber and plastics hoses and hose assemblies for use in the pharmaceutical and biotechnological industry - Bonded elastomeric hoses with or without a lining; German version EN 16820:2017— 29 стр.
Rubber and plastics hoses and hose assemblies for use in the pharmaceutical and biotechnological industry - Bonded elastomeric hoses with or without a lining