标 准 编 号：BS EN ISO 228-2-2003 简体中文标题：非螺纹密封连接的管螺纹.用极限量规检验 繁体中文标题：非螺纹密封连接的管螺纹.用极限量规检验 English Name：Pipe threads where pressure-tight joints are not made on the threads - Verification by means of limit gauges...