Groove typeSPASPBSPCSPZ Quantity of Groove1/2/3/4/5/61/2/3/4/5/6/8/102/3/4/5/6/8/10/121/2/3/4/5/6/8 Click Here for more details！ Selection steps Measure the distance between pulley groovesMeasure the thickness of pulley groove. Measure the inn......
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