No. 71, Qigong Road, Coastal Industry Base, Yingkou City, Liaoning Province, China

Shanghai Crowntech Photonics was incorporated in 2013 with headquarters, sales division and R&D center in Shanghai and its operations center and large manufacturing facilities located in Yingk...

Hunhe Nan  Shenyang, Liaoning

Yongcheng Communicatoins is a telecommunication equipment manufacturing company majoring in distribution products and optical accesories.Founded in 2004, the company has passed the ISO 9001 certificat...