LaserCuttingService ChinaCustomized equipment parts-Dalian LongyuanElectric Appliance Co., Ltdspecializes in sheet metal processing, laser cutting parts, machine shell and cabinet processing, design and production of electrical control cabinet and high&low voltage switch ...
1.Gypsum powder quality standard: in compliance with GB/T 9776-2008 2.Main Technology(here take Nature gypsum rock as example) Gypsum rock - first crushing -second crushing - grinding - calcining - aging -finished products (CaSO4.1/2H2O) After being heated and calcined with ...