Hole opener is used for expanding the drilled hole, the cutter are manufactured under the severe quality control. All our hole openers are field maintainable , with easy assembly and disassembly.....
Hei Longjiang North Shuangjia Drilling Tools Co., Ltd. ( Sj-Drilling) is a holding company of Heilongjiang North Tool Co. Ltd. under China South Industry Group Co. The company has a registered....
Circulating sub is a specialized tool for circulating drilling fluid when running in casing on the way or finishing running casing downhole. According to actual needs.There are circulating sub with....
Tianhe Petroleum Machinery Joint Stock Co., LTD. is a modernized medium-scale enterprise specialized in production of oil and gas tools. Established in 1973, our company has 50 million RMB registered....