https://nbgangsheng.en.made-in-china.com/product-group/ibFTsAeDnPUM/GNSS-Antenna-1.html
GNSS Antenna - Ningbo Yinzhou Gangsheng International Trade Co., Ltd. - page 1.
gnss antennainternational tradeningbo
https://scce.sjtu.edu.cn/en/Faculty_Directory/358.html
Gangsheng TONG-SCCE
School of Chemistry and Chemical Engineering Shanghai Jiao Tong University
tong