Much of the problematic drywall , which is also known as wallboard or plasterboard , was manufactured in china . One manufacturer is knauf plasterboard , tianjin co. , a subsidiary of the german construction-material company knauf international gmbh.
Painting production line of decoration wallboard of nanjing changzheng group .
南京长征集团装饰墙板喷漆生产线。
Wallboard manufacturers supply straw , stalks of straw door , moses ding qi feng decoration co. , ltd.
供应秸秆墙板生厂商,秸秸秆门,智鼎装饰有限公司岐峰。
Also , in enclosed spaces that have seen plenty of puffs over the years , they suggest replacing furniture , carpet and even wallboard to cut down on the amount of tsna exposure .