... anti-pry, anti-drill, elegant, smooth and silent for using. Steel Door Material: Quality cold-rolled steel sheet & stainless steel ... (steel sheet thickness available from0. 5mm~1mm for door leaf, and 1.0mm~2.0mm for door frame) 3. Infills: Honeycomb material or ... available 6. Colour: Diversified available 7. Door leaf thickness: 50mm, 70mm, 90mm8. Door frame thickness: 80mm-270mm available. 9. Size ...