What does a pipeline budget estimate include?

In terms of cost: the installation cost includes labor costs, material costs (auxiliary materials), and machinery costs, while the purchase cost you mentioned refers to the costs of the main materials.

Equipment purchase cost is listed alongside installation costs; installation costs include labor and machinery

What is the relationship between the comprehensive budget table and the overall budget table? I look forward to experts providing an explanation

Adding the material costs and labor costs, and then deducting office supplies while spreading the equipment maintenance costs evenly.

When estimating the cost of pipelines, the costs include equipment acquisition fees, costs for major materials, installation costs, and labor costs. The people upstairs mentioned things a bit confusingly; the cost estimate for pipelines should cover at least the following components: Design fees: charges for pipeline design. Equipment and material costs: devices used in pipelines, valves, pipeline materials, as well as pipe fittings such as tees, elbows, and valves. Some organizations classify valves as equipment while considering pipes and their supports as materials. Construction costs: these include the expenses associated with installing the pipelines. The main costs include labor expenses for installation, material costs for installation, and machinery costs for installation. There are also fees incurred as a result of these costs (management fees, taxes, reasonable profits, etc.). It should be noted that the materials mentioned here are not the same as those used for equipment; equipment-related materials are generally referred to as primary materials, while those included here are considered auxiliary materials. Trial operation cost: expenses such as flushing and commissioning.

I finally understand the relationship between the material cost and the installation cost within the main material expenses!