Changxing Dingrui Steel Tube Co., Ltd. is located in Changxing beautiful scenery, the economically developed Yangtze River Delta economic center of the region, "International Garden City" - Changxing County. Transport facilities, roads and railways developed unique geographical location. Company well-equipped, strong technical force, advanced production technology, detection equipment. The main products are: cold drawn or cold rolled precision seamless bright, black phosphate precision seamless steel tubes, cold drawn shaped seamless steel pipe, precision galvanized seamless steel tubes, cold drawn precision welded, high-precision high-pressure pipeline. Products are sold throughout the country, exported to foreign countries. 
       Our products are manufactured using standard EN10305 (original German standard DIN2391); ASTM A519 and other standard series. Using high-quality carbon steel E235; E255; E355; SAE1010; SAE1020, etc., fine drawing techniques, pickling, phosphate, no oxidation Bright (NBK) heat treatment, nondestructive testing, anti-rust oil-soaked after-treatment to meet the high-precision, high-quality finish special requirements of steel. No steel inner and outer surface oxide, pneumatic, hydraulic, oil without any clogging, its mechanical properties suitable for any angle bend, and in high-pressure, bending, flaring, when crushed, do not crack, crack , elongation and strength steel to achieve the desired state. 
       Our products are widely used in engineering machinery, machine tool industry, hydraulic industry, hydraulic lines, shipbuilding industry, automotive tubing, heavy vehicles,; special vehicles, locomotives, heavy machinery, forging machinery, diesel engines, injection molding machines, compressors, boiler, power generation equipment. 
       The company respected "practical, hard work and responsibility," the entrepreneurial spirit and integrity, win-win situation, and create a business philosophy, to create a good business environment, with a new management model, perfect technology, attentive service, excellent quality of basic survival we always adhere to customer first intention in customer service, adhere to impress with their customer service.