标题: 求助:DIN 87104-1975 DIN 87101止回阀用阀插入件 [打印本页] 作者: cc523pate 时间: 2018-10-28 20:36:00 标题: 求助:DIN 87104-1975 DIN 87101止回阀用阀插入件
求助:DIN 87104-1975 DIN 87101止回阀用阀插入件 作者: liuxilin1215 时间: 2018-10-28 20:36:01
DIN 87104-1975已被替代:
DIN 87101-2003 Non-return flaps (storm valves), self-closing, verticai type, DN 50 to DN 150, PN 1 一 Mating dimension for flanges according to PN 10