Rongsheng company is a comprehensive enterprise specializing in electric power, petroleum, chemical, engineering, machinery processing enterprises supporting services, and Tianjin Steel Group, Baosteel, TISCO, long established, Wujin, Baotou, Valin etc. the major steel mills to establish a long-term friendly relations of cooperation, the main products include seamless steel pipe, alloy steel pipe, stainless steel pipe / plate / profile series, high-pressure boiler tubes, oil cracking tube etc...
Our company has jurisdiction over 5 branches, with stainless steel and seamless steel pipe spot more than 8 tons. Can send the goods to the nearest customers.
Seamless steel pipe material: 20#, 35#, 45#, 20G, 16Mn (Q345A, B, C, D), 27SiMn, 15-42CrM0 and so on
Stainless steel materials: 201, 304, 304L, 321, 316, 316L, 310S, 347, 2205 and so on
Alloy steel material: 12Cr1MoV (G), 13CrMo44 (A335P12, STFA22, 15CrMo), 10CrMo910 (A335P22, 12Cr2Mo, STFA24), A335P5 (STFA25, Cr5Mo), A335P9 (Cr9Mo, STFA26), A335P91 (T91), A335P92, WB36 (15NiCuMoNB5), Gangyan 102 (12Cr2MoWVTiB).
Oil casing steel grade: J55, K55, N80, L80, C90, T95, P110, Q125 and so on
Tianjin Rongsheng company's success, together with hard work and wisdom, but also embodies the vast number of consumers with deep feelings of love, but also inspired the company staff to struggle of faith, we will continue the new leap, enterprises to create greater glories, to make a contribution to the development of iron and steel industry.
Three security services: quality assurance, guarantee time, ensure that the number of
Service tenet: strong strength, high quality products, low price, first-class service.
Solemn promise: to ensure the best products, the best quality, the lowest price, the most perfect service to thank the old and new customers trust.
Business principles: customer first, quality, variety, reasonable price.  
Our company provide customers with the following services:
* Zero run, one from the sale.
* customers can pick the required length or other requirements at will.
*, purchasing contract or mills booking all kinds of special specifications.  
The library is no * swap specs, save you about purchasing work.
* transport agent, large volume can be straight hair, you specify the location.  
Don't rest on holidays.
* the steel pipe sold, the company is responsible for overall quality tracking, for you to eliminate worries.  
* all materials supplied by the company are attached to the steel plant