PEF (polythene) the high foaming product is the Qi source group introduces the overseas vanguard technology equipment, take the high quality PEF resin as raw material, take the high quality man-made elephant rubber as the modified material, after the mixed iron-smelting, builds up densely, opens builds up by the chemical blowing way produces the PEF high foaming elastomer, has the high elasticity, the high flexibility, the wear-resisting sound absorption, against condensation, the thermal conductivity low status high quality. This widely applies in central professions and so on air conditioning, cold storage, ships, medicine, petroleum chemical industry, electric appliance, because this uses the high-pressured polyethylene and so on not to poison the material, does not contain the deleterious substance, to the pipe-line equipment, the precision instrument non-corrosive action, is harmless to the human body, is the new generation high performance low production cost green building materials