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鉆具上下鉆臺為什么要戴護絲?
2017/8/24 來源:本站原創(chuàng)
鉆具上下鉆臺不戴對鉆具的絲扣磨損嚴重,甚至被撞壞。如沒及時發(fā)現(xiàn),鉆具入井后容易刺扣,粘扣和脫扣,從而將鉆具落井。同時絲扣損壞后也要增加修理費用,還縮短鉆具使用周期。所以鉆具要戴好護絲上下鉆臺
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????? ????? ???? ??? ???? ???? Q/SH 3450-0010-2013
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???? ????? ????? ????? Q/SH1020.2299-2015
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??????? ???????? ???? ??????? ???? (Q/LSJX03-2012)
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