| # | company_name | Contact Phone | Contact Address |
|---|---|---|---|
| 1. | Kawakawa Co., Ltd. | 02-2258-0038 | 10F., No. 16, Sec. 3, Shuangsh |
| 2. | Litefilm Tech Co.,Ltd. | 03-5511100 | |
| 3. | MEI HUA PRECISION INDUSTRY CO. | 04-24933311 | |
| 4. | BASO PRECISION OPTICS LTD. | 886-4-25320168 | |
| 5. | CALIN TECHNOLOGY CO., LTD | 886-4-25353658 | |
| 6. | ASIA OPTICAL.CO.INC. | 04-25342550 | |
| 7. | Newmax Technolgy Co.,Ltd. | 886-4-26864526 | NO.7,Lane 667,Chia Ho Rd.,Wai |
| 8. | LI YOU SCREW INDUSTRY CO.,LTD. | 03-3961333 | No.18, Huaya 3rd Rd., Guishan |