Shandong YINRUI Flame Retardant under the YINFENG GROUP is a professional manufacturer and supplier of Magnesium hydroxide flame retardant.
 YINFENG GROUP was established in 1999 with registered capital of RMB 1 billion, Until now, YINFENG GROUP has been formed of three parts of operation, which are financial, real estate and biological.
 With advanced production techniques, Shandong YI...