Mingder Ore Mineral stone color sorter machine--www.hefeimd.com professional stone separator machine Maker from China, No.1 manufacturer here. We will solve your difficulties with all our rich experience in the industry. welcome to contact us: 0086-551-62578095; Mobile/whatsapp: 008613966725592 Skype: dianahongsmile email: dianahong@hefeimd.com