... ,GB Brief Introduction of Factory Founded in 1983, DJSF is a specialized enterprise, including screws, spring pins, lock rings, springs ... system by the standard of "ISO9001, ISO14001". DJSF is a well-appointed comprehensive enterprise with strong power, well-trained staffs ... drill CNC Swiss-type machines, we are equipped with a full line of CNC equipment from the following manufactures:molding machines/ ...