quick-opening handhole with rotatable cover的意思|示意
美 / /
英 / /
带有可旋转盖的快开手孔
quick-opening handhole with rotatable cover的网络常见释义
回转盖快开手孔 quick-opening gconsumed vingve 速启阀门 quick-opening handhole with rotatable cover 回转盖快开手孔 Quick-opening valve step pressure generator 快开阀阶跃压力发生器 ..