الوصف

The main component of gypsum in cement is sulfur trioxide SO3(including two crystal water),The standard value of sulfur trioxide SO3of natural gypsum is *5%,and that of desulfurization is *9%**2%.Compared with natural gypsum ,its performance is better than that of natural gypsum .and the desulfurization gypsum is power ,so it can be put into use without going through the second process.so as to reduce the use cost .