This is Heilongjiang Changzhi Mechanical & Electrical Equipment Mfg. Co., Ltd was build in 1997. We are specialized in manufacturing dumbwaiters, home lifts and their spare parts. Since the....
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....
The pre-existence of Tianhe Oil Group Co., Ltd is Mudanjiang Petroleum Machinery Co., Ltd, established in 1973. Tianhe Petroleum Machinery Joint-Stock Co., Ltd has restructured twice during the....
We are TIANHE OIL GROUP which is speciallised in manufacturing and exporting oilfield tools for 40 years, with the scope of almost all downhole tools, fishing tools, jar tools, including drill collar....