
Shanghai Smile Special Alloy Materials Co., Ltd.Shanghai Shi, China

Opticos SRLBergamo, Italy

Ningbo Haocheng Haosheng Electric Co., Ltd.Zhejiang Sheng, China

Guangdong Institute of Metrology (South China National Measurement and Testing Center)

Tai'an Special Equipment Inspection and Research Institute

Jiangsu Hongtaiyang Energy Saving Technology Co., Ltd.

Jiangsu Longyuan Zhenhua Ocean Engineering Co. Ltd.

Wuxi Oulida New Energy Power Technology Co., Ltd.Jiangsu Sheng, China

Shenzhen Sunshine Fuyuan Technology Co., Ltd.Guangdong Sheng, China

Gaoyou Yapu Plastic Industry Co. Ltd.

Hangzhou Kanglian Technology Co., Ltd.Zhejiang Sheng, China

Jiaxing Jixiangcaiman Curtain Wall Material Technology Co., Ltd.Zhejiang Sheng, China