- GSY STEEL GROUP:
- TIANJIN GSY TECH CO.,LTD
- TIANJIIN ZHONGMAO PRESTRESSED CO.,LTD
- TIANJIN GUANGSHENGYUAN EXPORT AND IMPORT CO.,LTD
- Whatsapp: 0086 13516177732
- Email : sales@tjzhongmao.com
- Address: Jintai Road No.9, Xiqing Development Zone Dasi Industrial Park,Tianjin
- P.C: 300385
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