... construction are made of straw materials The wall panel and the door are arc surface This kind of construction ... and special process, strictly according to the requirements of GB8624-1997 and JC688-1998 standard. It ... . So it is the ideal replacement material of wood board,gypsum board and calcium silicate board ... straw, sawdust, rice bran and a variety of powder.3.Light weight but with high rigidity, ...