... 3.delivery time:20-30 days CHINA FIRE PROOF CERTIFICATE 60MINUTES-90MINUTES(FIRE PROOF TIME)Features:1) Size: 2050*960mm, ... Inside filling: Fireproof material board (1,200kg/cbm)4) Fire rated time: ≥60-90minutes5) Environment : ≥950°C6) ... Technology Co.,ltdCindy Zhang86-13011228771Skype:cindy20129168 stainless steel fire door,1.5 hour fire rated doors,fire resistant door,fire proof door with glass