... industry: gy psum,ammonium,Glauber's salt,iron sulphate copper sulphate.nickel suphate.potassium chloride.axetic acid,borax,soda ... etc. 4.Mining and metallurgical industry mineral products in copper,zinc and aluminium etc,and metal refined. 5. Environmental ... protection such as treatments of acid gypsum drainage and sludge purification.SS800 –NE three-column manually top discharge centrifugeTECHNICAL ...