1.ISO9001 ,TS16949 certificated 2.precision :P4,P2 3.used in 90m/s high speed wire rod rolling mill 4.brass cage silver dimension seriesdCagesingle row -(B-type) - standard728, 719...B, 72...B,73... B,74...B20..280 mmM,MA,MBfour pointsQJ2, QJ335...200mmMsingle row -specials75, 76, 77, 7823.5...190 mmM,MA,MBsingle row - highprecision (A,C type)70..A, 70..C, 72..A, 72..C20..150 mmTA,TB,MA,MBdouble ...