Changsha Niyou Technology Co., Ltd., locates in Changsha city,Hunan,China, and covers 50,000 square meters of shop area. The company has ISO9001 , pressure vessel design qualification and manufacturing qualification of A1,A2,A3. Ronsco is a member of the resource market of Sinopec, Petrochina, Cnooc, Shenhua Group and China National Chemical Corporation. It has obtained a high rating of AA-level in sinopec commercial credit center. It is an important strategic partner of UOP for MD/ECMD/Hydrogenation reactor and internal parts in China.

Our company has more than 400 employees, including 36 senior engineers, 35 licensed welders and 6 Grade II RT, UT, PT and MT NDT technicians. Our company has more than 400 sets of equipment, with a production capacity of 25,000 tons/year for trays, 20,000 cubic meters/year for packings, and 8,000 tons/year for pressure vessels.