... insulation foreskin, recorder, color video tape. Etc 3. Machinery and equipment-PC is suitable for gear, rack, worm, bearings, cams, bolts ... , crank, ratchet, also suitable for machinery and equipment housings, covers and frames. 4. PC can be made into cap, tube, bottle ... as an artificial kidney, artificial lung and other artificial organs. 5. For architectural, PC can be made into Double-wall ...