... alternative to CFC and HCFC blowing agent, used for foaming in ice-box, panel, polyurethane refrigerant R245fa 1. purity 99. ... alternative to CFC and HCFC blowing agent, used for foaming in ice-box, panel, polyurethane adiabatic material.Hangzhou Osking Import& ... Export Co., Ltd. is located in the beautiful paradise on earth ...