... chosen 3/4"hexagonal drive sha Concrete Scarifying Machine CSC200,200mm Working Width Product DescriptionFeaturesCutting depth ... rammer,vibratory truss screed,surface finishing screed,scarifying machine,gasoline water pump,drum roller,vibratory plate compactor ... floor) and other fields. Certificates CE Company IntroductionConmec Engineering Co., Ltd.,a leading manufacturer of concrete finishing ...