- Changchun Yichen Optronics Co., Ltd.
- Address:No.1111 HangKong street High-technology development district
- USTRON (FuJian) Optical Technology Corporatio
- Address:(Minjiang Estuary Industrial Park) Qinjiang Village, Hangcheng Town,Changle,, Fuzhou, Fujian, China,350200
- Suzhou Wkl Solutions Co., Limited
- Address:9FJiacheng Building, Jinji lake road, Industrial park
- FUZHOU JYS OPTRONICS CO., LTD
- Address:Fuzhou, Fujian, China
- Kunshan Dazhuo Optics Factory
- Address:34A Lisheng Road, Huaqiao Tow
- Wuhan TianYu Optical & Electronic Instrument Co., LT.
- Address:No. 8 WenXiu, Wuhan, Hubei, China,430070
- Chongqing Yulintao Technology Co., Ltd.
- Address:Yubei
- Jinan Luck Optronics Ltd.
- Address:No.25166 Jingshi RD
- Yueqing Aituo Optoelectronic Co., Ltd.
- Address:2140 Wen Rui Road, Ouhai
- Maxopto Optic
- Address:Shenzhen, Guangdong, China
- Northeast Industries Group Co., Ltd.
- Address:
- Jilin Hawking Photoelectric And Technological Co., Ltd.
- Address:5099th Road
- Changchun Better Optics Co., Ltd.
- Address:NO. 1283 Lingdong Road, Changchun, Jilin, China,130000
- Henan Kingopt Exp & Imp Co., Limited
- Address:Building 1, No. 3 Industrial Park, High Tech District, Nanyang, Henan, China,47300
- Changchun hongsheng photoelectric co.
- Address:Changchun, Jilin, China
- Changchun Juncheng optical Instrument
- Address:Changchun, Jilin, China
- hijiazhuang zeyuan optical material co.ltd
- Address:jianhuabeidajie, Shijiazhuang, Hebei, China,050047
- BAOJI LONGQIN METALS PRODUCT WORKS
- Address:16 Yong Qing Industrial zone, Baoji, Shaanxi,china, China
- Jilin Debang Auto Electric Co., Ltd.
- Address:#199 MuJu Road,Advanced Mechanism Manufacture Park,Luyuan Economical Development Zone,ChangChun City
- Shen Zhen Leconn Technology Co., Ltd
- Address:1502 / Hehe Road / Gangtou / Longgang District /