... )competitive prices 5)timely delivery We are Manufacturer of aluminum ammonium sulfate,ammonium alum,tschermigite.1)many specifications2)good quality3)competitive prices4)timely ... , water treatment,,fertilizer,dying,pharmaceutical industries etc.,good quality aluminum ammonium sulfate,ammonium alum,tschermigitemany specifications,for example:Ammonia alum99.3%min.Moisture4 ...