... Coating: powder coating ,heat-transfer printing General Technical Details:l Identification: Steel Security Doorl Door frame: Standard design ,customer ... the up and bottom horizontal placel Handle: Metallic , single movable or double movable l Hinges: 4 invisible hinges with five ... adjusting screwsl Infill stuff: paper honey comb /rock wool l Peephole: yes, zinc alloy viewer ,with plastic coverl Doorbell ...