... 2.High quality machinery 3.over 10 years experience gypsum powder production lineCapacity: 10,000 t/y~500,000 t/y ... oil furnace as heat source Fuel: coal, natural gas, heavy oil, diesel oil Main materials: natural gypsum rock, desulfurization gypsum, dephosphorizaiton gypsum ... can diminish effcient labor force, lower cost and maximize efficient. natural gypsum powder production line