China 1.2.4. Hfc134A Blowing Agent Rigid Polyol Mixture Isocyanate/Polymeric Mdi and Polyol for Freezer Insulation, Find details about China Polyol, Polyether Polyol from 1.2.4. Hfc134A Blowing Agent Rigid Polyol Mixture Isocyanate/Polymeric Mdi and Polyol for Freezer Insulation