标 准 编 号：BS EN ISO 228-1-2003 简体中文标题：非螺纹密封连接的管螺纹.尺寸、公差和名称 繁体中文标题：非螺纹密封连接的管螺纹.尺寸、公差和名称 English Name：Pipe threads where pressure-tight joints are not made on the threads - Dimensions, tolerances and designation...