... PUDF, Stainless steel with brushed/mirrored. 2. Insulation materialType: Paper honeycomb, Aperture: 20-35mm 3. PanelWidth (mm): 980, 1180( ... + Alum. Joint + Notch (Tongue & Groove type is also available) Product features:The sandwich panels are new multi-purpose construction material ... usually use EPS, XPS, PU, Rock wool, Paper honeycomb, Aluminum honeycomb etc.They are widely used in clean room as non ...