key seat reamer 1.standard:API 2.the best price in China 3.deliver promptly 4.high quality service key seat reamerModel JKQ key seat reamer is a downhole tool which is designed to destroy and finally eliminate the key seat formed on the bore hole wall.It is connected above the drill collar.At its sliding sleeve can ream the key seat effectively.Technical ParameterTypeLefthand ThreadO.DJK- ...
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