- Taizhou Delongtai Machinery Co., Ltd
- Address:Sanhetan Industrial Zone,Chengguan,Zhejiang, Taizhou, Zhejiang, China
- Chengdu Talent Industrial Co., Ltd.
- Address:Bei Road, Chengdu, Sichuan, China
- Hebei Dongan Precision Manufacturing Co., Ltd.
- Address:no.99 yanshan, Shijiazhuang, Hebei, China
- Huaweiduanya.co.ltd
- Address:Shaanxi, China
- Taizhou BYK Machinery Co., Ltd
- Address:Linghuang Kanmen Yuhuan, Taizhou, Zhejiang, China
- Zhejiang Boying Machinery Co., LTD
- Address:Xiaoshan, Hangzhou, Hangzhou, Zhejiang, China
- Qingdao Bestyear Hardware & Machinery Co.,Ltd
- Address:16 taiping road, Qingdao, Shandong, China
- Hangzhou Wanka Universal Joint Co., Ltd.
- Address:Jinhua Development Zone,Jinhua Town,Xiaoshan, Hangzhou, Zhejiang, China