... service life.. Fast delivery and better sevice after sale Classical V-BeltsTYPE: Y, K, FM(Z), A, B, ... 20, C, 25, D, E, 3L, 4L, 5LNarrow V-BeltsType: SPZ, SPA, SPB, SPC, 3V/9N, 5V/15N, ... , RBX, RCX, R3VX, R5VXDouble/Six-sided V-BeltsType: HAA, HBB, HCC, HDDPoly-V belts (Ribbed belt)Type: PH, PJ, PK, ... PL, PM Agriculture V-beltsType: HI, HJ, HK, ...