Freedom (Zhengzhou) Industrial Co., Ltd. is the most powerful manufacturers of radiators of copper waterways. Freedom is strong in production technology is recognized by the Ministry of Construction, China''s new R & D base radiator ; Freedom is convection-style brass radiator production standards in China and copper-aluminum compound radiator production standards in China, Participation compilation units; Construction Standing Committee on heating radiator; China Construction Metal Structure Association; the company president is heating radiator, Henan Province, executive vice president of the Commission. Freedom radiator has passed ISO9001: 2000 international quality system certification; and through the national Ministry of Construction, ministry-level appraisal, expert opinion that Freedom''s technology has reached the international advanced level.