1. motor. Japan's "7" motor has high precision, durability and stability. 2. screw. Japan NSK, Taiwan PMI, HIWIN, Germany F grinding grade screw, with precision. The longest one has not been abnormal for 10 years. 3. electrical appliances, all imported accessories, such as spring button, Fuji switch, contactor, Schneider. Electrical appliances, Taiwan electrical appliances The 4 mould frame is manufactured by large factories, with high accuracy and durability. The earliest machine has been used. There is no problem for more than 10 years.