... shell. Also, it is used to make fine parts of communication equipment, such as CD-ROM, telephone, computer, video recorder, telephone ... 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 ...