... : 9.5X, AX, BX, CX, DX, AV12,AV12.5,R(MR), Y(MY), ZBS, YU, RU, ZA, FS, ZD ... offices and with small household electrical appliances.3)Our timing belts are composed of closed round rubber, with teeth ... harmony and one movement will cause transmission of teeth, chain, and belt.4) High quality and long life.Our ... the certification of ISO9001:2000,ISO9002,GB/T,etc.Type: R(MR), Y(MY), ZBS, YU, RU, ZA, FS, ...