... extrusion, coining, blow molding, thermoforming, printing, adhesive, coating and machining, the most important processing method is injection molding. PC ... is made into large bulb shade, protective glass, the right and left eyepiece tube of optical instruments. Also, it is ... insulation foreskin, recorder, color video tape. Etc 3. Machinery and equipment-PC is suitable for gear, rack, worm, bearings, ...