Business scope: Sale,
Building Materials,
Technical Consulting,
Production,
Sale,
Metallic Material,
Optical Module,
Take The Test,
Optical Device,
Production,
Electric Equipment,
Sales Of Labor Insurance Supplies,
Municipal Engineering,
R D And Sales Of Computer Software And Hardware,
Chemical Material,
Lease,
Earthwork Construction,
Optical Transmission Equipment,
Undertook,
Hydropower Project,
Wire And Cable And Components
...