Founded in 1995, Shanghai Grandway Telecom Tech.Co.,Ltd provides solutions Optical Distribution Network products and Testing Maintenance. is a science technology innovation company dealing with R&D, manufacture, distribution after-sales services of ...

Volks Telecom Techn. Co., Ltd, registered in 1999, is a shareholding company which professionally engaged the integration and service of customized projects deployment detection optical communication network. Of course, volks also one biggest national ...