FR4 is made of electronic grade alkali free glass cloth dipped with high temperature resistant resin, baked and hot pressed. The bromine content of the material meets the performance requirements of NEMA FR-4 or IEC epgc202. Its continuous operating temperature in mechanical application is 130 ℃. 

FR4 is made of glass fiber cloth and easy processing epoxy resin in high temperature environment. This product can meet the performance requirements of NEMA FR-4 or IEC epgc202, and has excellent mechanical strength and electrical performance in high temperature environment. Its application temperature in mechanical operation is 130 ° C. Its flame retardant has UL certificate.