- First Tools Ind. Co., Ltd.
- Address:No. 5, Lane 388, Sce. 1, Chieh Shou Road,
- Hung Ta Instrument., Co. LTD
- Address:No. 17, 11 Rd, Taichung Industrial Park
- Taiwan Sunlon industrial co., ltd.
- Address:1 nan-yuan road.
- CHAN MAO TECHNOLOGY LTD.
- Address:Wu Cyuan 1st Rd., Shin Jhuang Dist.
- Yong Ju Machinery Co., Ltd
- Address:No. 72, Dougong 2nd Rd. ,
- E-Base Measuring Tools Co.
- Address:No. 132, Tzu Chiang Rd., Pao-Chung, Yun-Lin, Taiwan, R.O.C.