1.Main Type: V-Belt SPA 2.Specification:Top width:13mm;Thickness: 10mm; Length range: 647-10000 V-BeltPlz refer to our quality certificate in our alibaba web. If you need, we could offer you SGS certificate.our goods passed ISO9001:2000 certificate.Plain v-belt: FM(9.5),Z,O,A,B,C,D,E,F,SPZ,SPA,SPB,SPC, 3V, 5V,8V,14X10, 21X14,etcRaw Edge V-Belt :AV-10, AV-13, AV-17 and AV-22, 9.5X, AX, BX, CX, DX, ...