Tricone Bits for Well Drilling
Size:9 5/8" 9 7/8" 12 1/4" 17 1/2" etc
IADC:417/517/537/617/637
API&ISO
Metal/Rubber Seal
Company:Hejian Perfect Drilling Equipment Co., Ltd.
Size:9 5/8" 9 7/8" 12 1/4" 17 1/2" etc
IADC:417/517/537/617/637
API&ISO
Metal/Rubber Seal
Company:Hejian Perfect Drilling Equipment Co., Ltd.