Shanghai Quanmi Mechanical Sealing Co., Ltd.
Hebei Lianku Technology Co., Ltd.
Suqian Changen New Materials Co., Ltd.
Tangshan Mingwan International Trade Co., Ltd.
Tongxiang Jiasheng Plastic Products Co., Ltd.
Tianjin Iking Gerui Business Co., Ltd.
Shanxi Yann's Heavy Equipment Parts Co., Ltd.
