Shenzhen Weihongxin Technology Co., Ltd. is a comprehensive fine chemical enterprise specialized in R&D and manufacturing of polyurethane additives for more than 20 years, has accumulated rich experience. Main products: PU colors, slow recovery cell opener, anti-scorching agent, silica-gel powder, silicone oil, amine A33, super whitening agent, anti-yellowing agent, anti-UV agent, anti-hot pressing agent, and etc.