GreatDrillBit
US
Cangzhou Great Drill Bits Co. Ltd., founded in 2010, speciallized in processing research of steel a
About
Cangzhou Great Drill Bits Co. Ltd., founded in 2010, speciallized in processing research of steel and diamond materials, is involved in the development, design, production and sales of petroleum equipment, up to now we have being the top material supplier of CNPC, SINOPEC, CNOOC.
What we do
Where we are
US