Zhejiang chuanhua chemical co., ltd
Zhejiang hengyi group
Dongfeng Yulong group
Dongfang electric group
Fulida group
Hangzhou Linjiang environmental protection thermoelectric co., ltd
Zhejiang Zhongli holding
Hangzhou Chen Zhe rubber co., ltd
Zhejiang Baihe group
Jihua chemical industry group
Geely automobile technology research center
Hangzhou Longshan chemical industry
Avionics
Hangfeng Tower of Hangfeng High-pressure Pipe Industry Co., Ltd.