1. Timing Belt : MXL, XL, L, 3M(HTD), 5M(HTD), 1.5GT, 2GT, 3GT, 5GT, T2.5, T5 etc. 2. V-Ribbed/ V-Belt : J, H, Js, A, B, C, 3VX, 5VX, 8V, SPZ, SPA, SPB, SPC, XPZ, XPA, X etc. 3. Poly Belt: KSG, IR, IRS, SG, L, LA, M, MA, H, HA etc.