Surface resistance: 104~106 Ω Common type and heat-resistance type(120℃ ) are available. Overall Size: 355*320*563mm . Can accommodate 50 pieces of PCB. Specifications of PCBs to be accommodated: 350*(50-250)mm Side guide slot: depth 3.5mm, width 5mm , pitch 10mm The top and bottom boards are made of plastic. Gear track allow