Shaft with high quality and precision, we believe that you will benefit from it. We are a factory which produces kinds of bearings, such as ball lead screw, linear bearing, linear rail, ball joint bearing, slider unties and etcs. The pictures about our company and factory:The designation about shafts:WC/WCS3, WC/WCS4, WC/WCS5, WC/WCS8, WC/WCS10.... Cylinder linear rail series-Shaft WC/WCS