Zhejiang Bono Steel Pipe Co., Ltd. was established on November 28, 2016, mainly engaged in the manufacturing, processing, and sales of stainless steel seamless pipes, stainless steel welded pipes, pipe fittings, etc. Wenzhou Ruihong International Trade Co., Ltd. was established on January 13, 2010, specializing in wholesale of hardware products; Sales of valves and plugs; Sales of metal structures; Sales and manufacturing of metal materials, etc.