... machining center auto-welding,coil winding modern high accurate variable speed drive syste Detailed Product DescriptionServo Disc motor ... welding,coil winding machine and modern high accurate variable speed drive system such as navigation,tracking,artillery and radar,ect. ... 7000W.1. Quality control: ISO 9001:2008 quality control system authentication. 100% inspection for all units before shipment. 2 ...