1) Materials: cold-rolled steel, HDF board veneered with natural wood skin2) Frame outer dimensions (H x W): a) 2,050 x 960mm b) 2,050 x 860mm c) 1,970 x 960m d) 1,970 x 860mm3) Doorframe thickness: 1.2mm/1.5mm4) Steel panel thickness: 0.8mm/1mm5) Door leaf thickness: 70mm/90mm6) 1.2mm thickness reinforced steel structure inside7) Sound-insulated warmth reservation honeycomb8) Opening degree: >90 degrees9) Accessories: adjustable reinforced hinges, quality core-inserted security lock, side lock points, wide vision peephole, hidden doorbell, sound-insulated rubber seal, installing bolts, stainless steel doorsill, decorative wood line, strengthen anti-pry doorframe10) Applicable for the entrance of houses or flats11) Suitable for different wall thickne