标 准 号：BS EN 1092-1-2007 简体中文标题：法兰及其连接件.按PN标注的管、阀门、配件和附件用圆形法兰.钢法兰繁体中文标题：法兰及其连接件.按PN标注的管、阀门、配件和附件用圆形法兰.钢法兰English Name：Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Steel flanges...