Home > 89mm T45 hard rock mining threaded button drill bit

Dth drill bitsmanufacturer, factory, supplier from china (total 24 products for dth drill bits)

Dth bits are mainly used for quarrying, ore mining, coal mining, soft, medium hard, and hard rock, blast hole drilling and water well drilling project, marble quarry or …

5pcs magnetic screwdriver s2 alloy steel double-headed cross drill bit set. item details: 100% brand new and high quality. it is made of high-strength s2 chrome-plated alloy steel and is extremely durable. suitable for installation in pneumatic screwdrivers, electric screwdrivers, rechargeable electric drills, and wind bits.

73mm api oil drill pipe2 7/8" oil well drilling tubing casing pipe , find complete details about 73mm api oil drill pipe2 7/8" oil well drilling tubing casing pipe,drill pipe thread protector,api drill pipe,drill pipe manufacturers from steel pipes supplier or manufacturer-hebei yongming geological project machinery co., ltd.

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