blanking: cutting machine, CNC machine tool, optical fiber laser cutting, low temperature plasma, single model shell stamping machine, etc. The depreciation and amortization cost of this automatic cutting machine. Forming: steel bar bending hoop machine, rounding machine, sheet metal manufacturing The total number of welding equipment, welding equipment, welding equipment, welding equipment, welding equipment, etc. Surface treatment: refers to the cost of electroplating process, air oxidation, metal drawing, polishing, painting, ink printing, etc. The cost of packaging. Stainless Steel Sheet Metal Shipping Cost: Rgb. Management costs: institutional management costs for production operations. Profit: for the survival of customers.