2 Beijing He Jiang Curtain Wall Co., Ltd.
3 Zhejiang Zhongnan Construction Group Co., Ltd.
4 Shenzhen Keyuan Construction Group Co., Ltd.
5 Wuxi Wangxing Curtain Wall Decoration Engineering Co., Ltd.
6 Shanghai Meite Curtain Wall Co., Ltd.
7 Guangdong Jingang curtain wall engineering Co., Ltd.
8 Shenzhen Sanxin Curtain Wall Engineering Co., Ltd.
9 Zhuhai Xingye Green Building Technology Co., Ltd.
10 Shenzhen Jin Yue Curtain Wall Decoration Engineering Co., Ltd.
Top 10, personal opinion. . .