Procurement of rainwater pipe network project, cost accounting method of steel belt bellows

In the procurement process of the rain water pipe network project, steel bellows are the core pipes, and their cost accounts for a large proportion of the total project pipe budget. Accurate cost accounting is the key to controlling the overall project budget and improving the cost performance of procurement.

The cost accounting needs to be dismantled one by one from multiple dimensions: the first is the cost of raw materials, which is the core component, mainly including the purchase unit price of steel strip and polyethylene raw materials. It is necessary to calculate the raw material consumption of a single pipe in combination with the diameter and wall thickness of the pipes required for the project. At the same time, consider the reasonable loss rate in the processing of raw materials. Usually, the loss rate is controlled between 1% and 3% to avoid cost deviation due to missed losses.

The second is the processing cost, which covers the depreciation and amortization of production equipment, labor costs of production lines, production energy consumption costs and processing losses. Manufacturers of different production scales will have different unit processing costs. When calculating, the purchaser can refer to the average processing cost range of the industry and compare it with the capacity of the supplier.

In addition, the cost of transportation and distribution needs to be calculated according to the distance between the project location and the supplier, the transportation specifications of the pipe, the cost of model adaptation, loading and unloading, and the cost of loss protection during transportation. Additional transit costs need to be considered in remote areas.

Finally, there are additional costs, including inspection costs before the pipe leaves the factory, packaging protection costs, and bargaining space that can be fought for when purchasing in bulk. The purchaser needs to quantify the cost of each link one by one, compare the quotation composition of different suppliers, avoid only focusing on the total price and ignoring hidden costs, ensure that the accounting results accurately fit the actual needs of the project, and provide a reliable basis for the procurement decision of the rain water pipe network project.