... ,LY-3301/3302 is widely used in refrigerator,cooling storage container ectwith cycloalkanes as foam-making agent.LY-3401/3402 ... is widely used in refrigarator cooling storage container ect,with water as foam-making agent LY-3501 ... refrigerator freezer PUR panel,sun energy temperature-keeping ,cooling-storage container,onsite coating construction,high-density wood imitation.piping.beer-tank ...