Sandwich panel 1.Good quality,good price 2.Good service,good reputation 3.Easy to install 4.Eccentric hook connection PU sandwich panel -heat insulation 1)construction industry 2)easy to install and elegant appearance (1)Core Material: XPS, EPS, PU; Surface Materials:aluminum sheets ,prepainted steel sheets or stainless steel sheets.(2)Wall Thickness: 25, 50, 75, 100,120,150,180,200mm(3)Max. ...