China Awj Bwj Nwj Drill Rod & Pipe - China Drill Rod,
Our drill rods are all manufactured by CNC machines. They're made of high quality alloy steel.All our drill rods are complete heat-treated. Our rods will be also suited to drill deep holes. From drillers' feedback,our rods have drilled up to 1800 meters depth. Size Available: Wireline Series: B,N,H,P 'WJ' Design: AWJ,BWJ,NWJ,KWJ,HWJ
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