... 1)6204 Ball bearings, Chrome steel 2)605-6015,625-6215,6300-6315. 3)ISO 9001,2000 4)OEM Manufacturer 5)ABEC-1 ... ,ABEC-3,ABEC-5 Cixi Ouji Bearing CO.,LTD is a Ball bearings OEM manufacturer ... in our goods . Please check our informations as follows :1) Types: 60 series , 62 series , 63 series ... )--China,(AISI)52100---American ,(Din) 100Cr6---Germany4)Shield/Closure:Plain(Open),Z,ZZ,RS,2RS,UG ...