API Threading Chasers, Carbide Inserts for Tube Machining, Bar Peeling Inserts manufacturer / supplier in China, offering Head-Exchangeable Drills- Carbide Drill Head -Qd-127-S1/a, Hole-Making-Deep Hole Drilling System- Indexable Deep Hole Drill Head-J35, Drilling-Head-Exchangeable Drill Body-Qd160-169-20-8d-Ca and so on.
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