... transfer painting finishing, sound insulation, heat preservation,antitheft, economical security steel door Features: 1) Material: cold-rolled steel sheet, inside honeycomb ... : 0.5mm~1.0mm3) Thickness of door leaf: 50mm~100mm4) Thickness of door frame: 1.0mm~1.8mm5) Frame ... direction: inward / outward 8) Pull: decided by buyer 9) Door sill: stainless steel sill 10) High definition peephole 11) Special ...