标 准 号：BS EN 12560-6-2003 简体中文标题：法兰及其连接件.标示等级的法兰用垫圈.钢法兰用涂覆的有锯齿金属垫圈 繁体中文标题：法兰及其连接件.标示等级的法兰用垫圈.钢法兰用涂覆的有锯齿金属垫圈 English Name：Flanges and their joints - Gaskets for class-designated flanges - Covered serrated metal gaskets for use with steel flanges...