Europeanstandard and Americal standard, with high quality and competitive price taper bushes,HRC Coupling,all kinds of teper bushings.taper bushes , taper lock bushes.QD-Bushes, from 1008 to 8085 as per your requirements.we manufacture and market universal Taper-Bushes, taper lock bushes, QD-Bushes,from 1008 to 8085 as per your requirements. Taper Bushes, HRC Coupling