Casing pipes are used in coring, water well, geological, geothermal, construction, DTH drilling project, to keep the hole diameter and compare the coring & DTH equipment drilling, It connect with casing bits and casing shoe directly.

Our SD drill rods & casing pipes produced by CNC machine, and choose high grade steel material thru heat treatment of the steel tube & thread joint to improve the steel material streagth and insurance the thread wear life.