[中 文] WCB—外沉淀杯是通過液體循環，將井內較小的顆粒，鐵屑沖洗上來，沉淀在杯內腔中，該沉淀杯可配合銑磨類工具同時使用。
[English] WCB-outer settling cup, through circulation of liquid, rinses up smaller particles and scrap irons in oil well and settles them in the inner cavity of cup. The settling cup can be used at the same time for being concerted with the milling/grinding tools.
