新型复合材料取代木材在木材资源日益匪乏的今天，人类急需一种取代木材的新材料。河北省保定市民营新新技术研究所所长曹双边发明了一种能完全取代木材的新型－材料曹氏方能复合材料。从１９５６年起、曹双边在总结前人经验的基础上经过千百次试验．攻克了菱镁材料变形、... With the replacement of wood with new composite materials, there is an increasing shortage of wood resources. Humanity is in urgent need of a new material to replace wood. Cao Bibi, director of the Private New Technology Institute in Baoding, Hebei, invented a new type of material, Cao’s square energy composite material, that can completely replace wood. From 1956 onwards, Cao Bibi passed thousands of experiments on the basis of summing up the experiences of his predecessors. Conquered the magnesia material deformation,...