Jotun polishing machine/ China stainless steel tank/cylinder shell surface automatic polishing machine This is JT-1 tank shell surface polishing machine,which can polish tank shell inside and outside surface. Producting workpiece Material:Metal(stainless steel,carbon sheel,etc.) Min and max diameter:200-5000mm, Min and max thickness:>1mm Min and max length:300-6000mm. Weight:1/2/3/5/10Tons. Surface roughness:Ra 0.25m Shipment port:Shanghai port. Delivery time:30 working days Payment: T/T, L/C Warranty: 12months.