steel door 1. Janpen or Korea Zinc steel panel sheet 2. Stuff with honeycomb paper or polyfoam 3. Various sizes available heat transfer powder coated Steel doors1)material:Japen zincification steel sheet 0.5mm for the door leaf and 0.8mm for door frame,stuff withhoneycomb paper2)door size:2050x900mm3)deep of door frame:15cm thickness of door leaf:5cm4)opening direction:inward/outward,5)opening ...