1) Material: Cold-rolled steel sheet for door leaf and frame with heat transfer-printing or powder coating. (steel sheet thickness available from 0.6mm~1mm for door panel; 1.2mm~2.0mm for door frame) 2) Door leaf thickness: 5 ~ 9 cm. 3) Opening direction: inward or outward. 4) Lock handle position: on left or right. 5) Interior hinge: opening 90 degrees ( recommend ). External hinge: opening 180 degrees. 6) Infilling: honeycomb material (polyurethane or silicic[...]