1) Surface resistance: 106-109Ω 2) Common type and heat-resistance type(120â) are available. 3) Overall Size: 355*320*563mm. 4) 50pcs of PCB plates can be stored. 5) Sizes of PCBs to be accommodated: 350*(50-250)mm 6) Side guide slot: depth 3.5mm, width 5mm, pitch 10mm 7) The top and bottom boards are made of plastic. 8) Gear track allow easy operation