... type: polycarbonate alloy , GRP 3.AC220V 4.ExedmbIICT4/DIPA20TA,T6 Explosion proof fluorescent fitting Type BYSApplication1.Used in Zone 1,Zone2, Zone20.Zone21,Zone22 ... injected of imported polycarbonate alloy material with good benefits in high strength, impact resistance, corrosion resistance, thermal resistance and cold resistance ...