hank adaptor, coupling sleeve, pilot adaptor, overburden drilling equipment, cutting tools which are used for mining, quarrying, tunneling, water well drilling, mineral exploration, geological prospecting, civil engineering and construction. Etc.

Friction Weld DTH drill pipe,Widely used in all kinds of drilling machine and drill hole.

(1)diameter: 42mm,50mm,60mm,76mm.etc

(2)length:1m,2m,3m.etc

(3)package: in wooden case or in bundles.

(4)Supply ability:5000pcs/month

(5)Delivery time :30days

(6)Payment terms:T/T or L/C