We are Shandong Zhongzheng Steel Pipe Manufacturering Co., Ltd of China and we have another trading company named Shandong Zhongli Steel Pipe Co., Ltd. What' s more, we have pasted the ISO and API....

China Coal Industrial Equipment Corp., Ltd. is a big Joint-stock enterprise and was founded at the beginning of 1980s, which is an comprehensive company specially doing the business of the mine....

Our company was established in 1994 with the name of Dongying Haixin Metal Product Co., Ltd. Then, it was renamed into Dongying Zhengda Metal Product Co. , Ltd in 2001. At the very beginning, we....

QINGDAO HENGLI PRECISION CASTING Co., Ltd. founded in 1997, produce and sell various precision castings made of carbon steel, alloy steel, stainless steel etc with lost wax investment casting....

Founded in China in 1953, Binzhou Forging and Pressing Machinery Factory is a state owned manufacturer and supplier of engineering machinery, forging and pressing machinery and construction machinery....

Weifang East Steel Pipe Co., Ltd., in world kite capitalâ € ” Weifang, is a professional enterprise integrating production, technology research, import and export trade. It is one of the best....

Dongying Haixin Petroleum Equipment Co., Ltd located in economic development zone of hekou, dongying, with land area of 150 acres, with registered fund of 20 million RMB, overall investment 190....

Yantai Yunsheng Petroleum Machine Accessories Co., Ltd produce API approved sucker rod couplings, including Spray Metal sucker rod coupling, class T sucker rod coupling, Sub OD sucker rod coupling, ....

Located in Linqu Economic Development Zone, Linqu Honglitai Metal Works Co., Ltd. Specilises in making various metal fencing, featuring by anti-corrosion, diversity, users-friendly, ideal for....

Our company mainly produce the steel tube for API 5L and ASTM A53, The sizes is from 57mm-2150mm, The wall thickness is from 3.5mm-28mm. Please feel free contact me if you have any questions. James