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  • Coal Rock Drill Bit

    Contact NowCoal Rock Drill BitWith professional and productive factory, HAINAISEN is one of the leading China coal rock drill bit manufacturers. Welcome to wholesale coal rock drill bit from us, we always have cheap products to offer you. Suitable for soft-medium hard rock formation with f≤8. Size: ¢...Read More

  • Carbide Drill

    Contact NowCarbide DrillWith professional and productive factory, HAINAISEN is one of the leading China carbide drill manufacturers. Welcome to wholesale carbide drill from us, we always have cheap products to offer you. Suitable for soft-medium hard rock formation with f≤8. Size: ¢ 27mm-¢42mm...Read More

  • Steel Matrix Pdc Drill Bit

    Contact NowSteel Matrix Pdc Drill BitWith professional and productive factory, HAINAISEN is one of the leading China steel matrix pdc drill bit manufacturers. Welcome to wholesale steel matrix pdc drill bit from us, we always have cheap products to offer you. 1.Specification: 2.Bit Size: 4 1/2"-- 17...Read More

  • Double Tube Diamond Core Bit

    Contact NowDouble Tube Diamond Core BitWith professional and productive factory, HAINAISEN is one of the leading China double tube diamond core bit manufacturers. Welcome to wholesale double tube diamond core bit from us, we always have cheap products to offer you. Quick Details Place of Origin: Brand Name : Model...Read More

  • button bit

    Contact Nowbutton bitWith professional and productive factory, HAINAISEN is one of the leading China button bit manufacturers. Welcome to wholesale button bit from us, we always have cheap products to offer you. The first well washing circulation can't stop, should pay attention to the...Read More

  • Diamond Core Drill Bit

    Contact NowDiamond Core Drill BitWith professional and productive factory, HAINAISEN is one of the leading China diamond core drill bit manufacturers. Welcome to wholesale diamond core drill bit from us, we always have cheap products to offer you. Quick Details Place of Origin: Brand Name: Model Number: NQ...Read More

  • Steel Tooth Bit

    Contact NowSteel Tooth BitWith professional and productive factory, HAINAISEN is one of the leading China steel tooth bit manufacturers. Welcome to wholesale steel tooth bit from us, we always have cheap products to offer you. The first well washing circulation can't stop, should pay attention to...Read More

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