Discusess that seizing a golden opportunity no produced and used solid chamotte,making use of the refuse resources,produces new construction material such as refuse air brick,etc.
英
美
- 论述抓住禁止生产和使用实心黏土砖的机遇,利用煤矸石资源性的因素,生产煤矸石空心砖等新型建材。