... engine beltsCR or EPDM, PU or Kevlar cord, 743-20-30,pass 200 hours machine testCharacteristics: auto parts1. High flexing capability2 ... and Kevlar cord available 5. AX, BX,CX, PH,PJ,PK, PL,PM, DPK, DPL,6. size from 600-3000mm.7 ... -18-28, 743-20-30, 788-18-30, 729-20-30, 735-20-30,842-20-30, etc. scooter belts 743-20-30 for qianjiang engine