Sell narrow v-belt

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A narrow V-belt has a wedged angle of 40 degrees and the ratio of its thickness and width is 0.9 or so. The belt is made of fabric, stretching glued layer, high pressure layer and compressed glued layer. The high pressure layer is composed of multi-layer glued cloth or single row of glue soaked strings. It can be classified into SPZ, SPA, SPB, SPC and SPD as per the metric system and 9N, 15N and 25N as per the British system.