"WE FOLLOW IS:12436-1988 FOR PREFORMED RIGID POLYURETHANE (PUR) AND POLYISOCYANURATE (PIR) FOAMS FOR THERMAL INSULATION."
COLDROOM DOORS
"WE FOLLOW IS:12436-1988 FOR PREFORMED RIGID POLYURETHANE (PUR) AND POLYISOCYANURATE (PIR) FOAMS FOR THERMAL INSULATION."