plug drill 中文意思是什麼
plug drill
解釋
沖擊式鑿巖機-
Taper plug gauges for taper sleeves for drill chucks
鉆頭夾頭錐形套用錐度塞規 -
Special tool for pumping slurry and releasing plug. the zsc - a single cavity cement plug set can be connected with drill pipe
用於注水泥漿和釋放膠塞的專門工具。 zsc型單塞水泥頭可與鉆桿連接。
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