... valve current 电子管电流 valve cutter 气门刀具 valve cylinder 阀筒 ...
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Valve seat cutter 气门座刀具 ; 气门座铰刀 ; 气门座刃具
electric valve seat cutter 电动阀座铣刀
valve-seat cutter 气门座铣刀
cooley-bloodwell-cutter valve 卡三氏人造瓣膜
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Valve seats, bearing, cutter edge, etc.
阀座，轴承，刀口等。
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Valve seat inserts, bearing, cutter edge, etc.
The existing valve reamer is stationary, and more than ten bits (cutter heads) of one set of reamers are arranged.
现有气门铰刀是固定的，一套铰刀的刀头(刀盘)多达十多只。
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