... injection molding. 1. our factory can make high quality plastic screw as per customer's drawing or sample.2. ... for electronic products,industrial product,lab plasticware,communication,auto product,aerospace,petrochemical industry,household products,(OEM). ... equipments:precision grinder,milling machine,driller,wire cutting machine,EDM,CNC,full automatic injection machine ,projector,ultrasonic welder.20 ...