excellent performence in fireproof,high strength,good heat reservation,high rigidness Specification1)Core length:1mm~20mm2)Foil thickness:0.03mm~0.08mm3)Total thickness:4mm,6mm,8mm,10mm,15mm,20mm,25mm,50mm4)Width standard width:1220mm maximum width:1990mm special width available by your request5)Length standard length:2440mm special length available by your request6)Standard size:1220*24407) ...