标 准 编 号：JIS G7218-2003 简体中文标题：焊后定径光端精密钢管.交货技术条件(ISO规范) 繁体中文标题：焊后定径光端精密钢管.交货技术条件(ISO规范) English Name：Plain end as-welded and sized precision steel tubes -- Technical conditions for delivery (ISO specifications)