Tianjin Hongyongfa Mechanical & Electrical Equipment Co., Ltd.

Tianjin DD Up Mechanical & Electrical Equipment Co., Ltd.

Tianjin Xinsheng Machinery Parts Manufacture Co., Ltd.

Tianjin Feichanghao Transmission Machinery Sales Co., Ltd.

Tianjin Kangquan Taifeng Technology Co., Ltd.

Shengyue Machinery Processing