·China Valmax Valve Co., Ltd.
·Guangdong Shangshan Precision Machinery Co., Ltd.
·China Topper Forged Valve Manufacturer Co., Ltd.
·Demark (Wuhan) Technology Co.,Ltd
·Anping County Yingmo Metal Wire Mesh
·Soonsol. Co., Ltd
·Zhejiang zhuoruixing intelligent technology co., ltd
·NingBo Santon Machinery Co.,Ltd
·Topper Smart Bidet Tiolet Seat Co., Ltd.