Surface resistance: 104~106 Ω Resistant to 120℃ Overall Size: 460*400*563mm . Can accommodate 50 pieces of PCB. Specifications of PCBs to be accommodated: 460*(50-330)mm Side guide slot: depth 3.5mm, width 5mm , pitch 10mm The top and bottom boards are made of metal. Stationary type. Adjustable through screws.( Allowed to be put in ageing chamber.)