Min. Order:
1 Piece
Price:
US$ 4 ~ 10000
Place of origin:
China
Supply Ability:
10000
limestone, etc;
IADC537: low compressive strength, medium soft, with hard abrasive interbeds, such as hard shale, hard gypsum, soft limestone, sandstone, dolomite with interbeds, etc.;
IADC617: high compressive strength, medium hard, with thick hard interlayer, such as hard shale, limestone, sandstone, dolomite, etc.;
IADC637: High compressive strength, medium hard and highly abrasive strata, suc
[Related Keywords : steel tooth bit]