... GX160,Chinese petrol engine chosen 3/4"hexagonal drive sha Concrete Scarifying Machine CSC200,200mm Working Width Product DescriptionFeaturesCutting depth adjustmentFront mounting ... )Main products:concrete cutter series,edging/walk-behind/ride-on power trowel series,tamping rammer,vibratory truss screed,surface finishing screed,scarifying machine,gasoline ...