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China Quantity Required:  200 Bags Production Specification s1.Bit Size:8 1/2'' s2.IADC Code:637 s3.API Pin Connection:4 1/2'' API Reg sOperating Parameters s4.WOBKN/mm:0.5-1.2 s5.RPMR/MIN:80-40 s6.Applications:hard formation with high compressive strength,such as sandstone, limestone,dolo ...
Time Left:  0D  0H Date Posted:  2025-02-16

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