... meterials,decorative stone meterials be fixed at the end.HEIFS Composite Panel , just needs fix hardware based on architecture drawing,put ... thermal insulation adhesive mortar and fix HEIFS Composite Panel .We leave out the steps ,Pre-cast the steel ... 10--15mm , not 25--30mm , saving cost of stone.HEIFS Composite Panel save the time of construction period , the cost of labor ...