For more than two decades, the company has remained dedicated to the fields of seamless steel tubes and precision bearing rings, building a strong industry position through continuous technological accumulation, manufacturing expertise, and market development.
Today, it operates two modern production bases: Huai’an Yichen Precision Machinery Co., Ltd. and Hubei Yiyang Pipe Manufacturing Co., Ltd. The Group’s business now reaches more than 20 countries and regions worldwide, positioning Yiyang as an intelligent manufacturing enterprise integrating research and development, production, and sales
bearing tube
tubes for bearing rings
Boiler & Heat-exchanger tubes
Carbon tube： SA106B,SA106C,SA210 A-1,SA210C ，SA179,SA192、20G ，20MnG, 25MnG
Alloy tube：SA213 T2,T11,T12,T22,SA335 P11,P12,P22, SA209 T1, T1a, T1b、15CrMoG, 12Cr1MoVG, 12Cr2MoG
bearing rings
Products rang: DGBB,NRB，CRB, ACBB,DRDGBB,,WPB and rock ram
Size range: OD:12 - 90MM,WT:Width.30MM
CNC: OD:30 - 150MM,WT:Width.50MM