1 ISO9001-2000 Certificate 2 Professional factory 3 Provide the whole series products 4 High quality,fine price,fine service Weld-on hubs are made of steel ,drilled and tapped and taper bore to receive taper bushings.They are very useful for welding into fan motors,pulleys,sprochets,plate wheel,agitators and many other devices which must be firmly fixed to the shaft. Our catalog: