O-net Communications(shenzhen) Co., Ltd.

[ Manufacturer Trader ]Main business are Optical communication

Zhejiang Safe Communication Equipment Co., Ltd.

[ Manufacturer Trader ]Main business are Communication equipment

Tai'an Xinde Calcium Silicate Product Co., Ltd.

[ Manufacturer Trader ]Main business are Calcium silicate product

Pulin (langfang) Photoelectric Technology Co., Ltd.

[ Manufacturer ]Main business are Passive device, Active device.