The cost of copper bars is: according to the calculated meter number, the magnification is 1.05` 1.2 times (production loss) multiplied by the actual weight per meter (for example, TMY30*4 weight 1.04KG per meter) and then multiplied by the actual copper price (the cost of zinc plating per kilogram needs to be added).

Labor costs and installation costs are calculated in different ways by different manufacturers, and the calculation standards are also different according to specific conditions.