聽 聽
1.聽Product Introduction
There are three kinds of gypsum retarder chemical, named聽phosphogypsum, FGD gypsum, fluorine gypsum. Among these three kinds of chemical gypsum retarder, fluorine gypsum is a green buliding materials, because it has no radiation and
聽
聽Gypsum Free Sample
website:http://www.xuexgypsum.com/gypsum/