... ISO9001:2008 ISO/TS16949:2002 Different structure and size Produce by customer's needs The supporting roller has the thick-wall outer ... directly at the rollwayand withstand the large load. The supporting rollers made by our company include STO RSTO, NA222RS, ... KR, KRE, KRV, KRVE, NUKR and NUKRE. Model KRPP,KREPP, KRVPP, KRVEPP, NUKRPP cure roller Supporting roller and curve roller needle bearing