日前,由保定中科节能材料开发中心研制成功的硅镁材料节能型日光温室,已获国家专利,并打入京郊等地。 该产品规格可大可小,室内无 Recently, the successful energy-saving solar greenhouse made of silicon-magnesium material developed by Baoding Zhongke Energy-Saving Materials Development Center has won the national patent and has been set in the suburbs of Beijing. The product specifications can be large or small, indoor without