Material Wet-formed mineral fiber Surface FinishFactory-applied latex paint ColourWhite Light ReflectanceMinimumLR0.83* Size(s)BTU unit,Watts unit Weight<=500-298.4kg/m3 Edge DetailSquare Lay-in, Beveled Tegular NRC0.55* CACMinimum 33**, Minimum 35** Surfacte burning characteristicsClassA(Flame Spread 25 or under) Sag ResistanceHumi Guard Plus-appropriate for high humidity interior applications up to 80% relative humidity,temperature up to 120F(40) no visible sag, HumiGuardTM Plus Warranty10-year limited warranty;15-year with Amelida hot dipped galvanized grid Insulation ValueAverage Rfactor(at 75F,24)is 1.6(BTU unite),0.28(Watts unit) Astme1264 ClassificationType , Form2, Pattem CE Submittal Information: hotels, restaurants, shopping areas, theaters, conference halls, offices etc.specifications: Tianyuan A SystemTianyuan B SystemTianyuan C System711 System300*600*6.5 22mm600*600*6.5 22mm300*1200*(6.5 22)mm400*1200*(6.5 22)mm600*1200*(6.5 22)mmCrystalloid-raindrops System300*600*6.5 22mm600*600*6.5 22mm300*1200*(6.5 22)mm400*1200*(6.5 22)mm600*1200*(6.5 22)mm711 System300*600*6.5 22mm600*600*6.5 22mm300*1200*(6.5 22)mm400*1200*(6.5 22)mm600*1200*(6.5 22)mm3510 System30*600*6.5 22mm600*600*6.5 22mm300*1200*(6.5 22)mm400*1200*(6.5 22)mm600*1200*(6.5 22)mmPinhole System300*600*6.5 22mm600*600*6.5 22mm300*1200*(6.5 22)mm400*1200*(6.5 22)mm600*1200*(6.5 22)mm3510 System300*600*6.5 22mm600*600*(6.5 22)mm300*1200*(6.5 22)mm400*1200*(6.5 22)mm600*1200*(6.5 22)mm