船用外螺纹青铜填料旋塞的英文

• marine bronze external screwed packed cocks

• 船:    boat; ship; vessels
• 用:    40分钟跑完全程 run the course in 4 ...
• 外:    outside; external side
• 螺纹:    screw thread; flight; helica ...
• 青铜:    bronze

例句与用法

1. Marine bronze external screwed packed cocks
   船用外螺纹青铜填料旋塞