The application of sandwich panels: - Industrial and civil roof and wall; - Tile shaped roofs and garage door; - Panels for cold stores; The foam injection can be made with closed mould or open mould,
The continuous PU sandwich production line applies rubber belt for transmission, meanwhile PU foaming when going forward by PU injector. The process is steel sheet forming, PU injecting and curing, cutting, packing. The product of sandwich is mainly ......