No.223,shibei road Guiyang, Guizhou
Guiyang Yuanshan Drilling Equipment co,.ltd is one of CN\'s leading supplier and exporter drilling tools for petroleum, mineral exploration,and water well construction,which aresuitable use in a wide range geological formations, from soft silts soils to ...
drill bits, drill rods, drill pipes, drill tubes, rock bits, tricone bits, rock roller bits, diamond core bits, coring bits, impregnated bits, reaming shells, well casing
