The main pull test, the twister, the thrust tester, the battery tester, the wire tester, the extraction tester, the drop tester, the shock tester, the grinding tester, the lifetime tester, the vibration tester, the combustion tester, the pressure tester, the strip strength tester, the headphone tester, the mobile phone tester, the watch tester, the pencil hard measurer, the mouse tester, the ball beat tester, the environmental test box, etc。