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Example of Building a Quotation System for Plant Manufacturing Equipment

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In plant engineering companies, many engineers are involved in cost-related tasks such as estimation, evaluation, and cost reduction. In practice, there is a constant demand for quick responses and cost reduction through the computerization or simplification of estimation tasks. The equipment for plant fabrication targeted in this document consists of specially designed items that are created for each instance. Understanding the composition of these costs can be challenging for those not in the manufacturing position, but the monetary weight is significant, and there is a need to enhance cost evaluation capabilities. This document is created primarily based on examples of a detailed estimation method, known as the bottom-up estimation, and the construction of an estimation system for fabricated equipment to assist in such cases. The examples of the estimation system construction in this document include three types related to wastewater treatment plants: "rapid filtration machine," "circular central suspended sludge scraper," and "dewatered cake storage hopper," but the concepts should also be applicable to other types. I hope this serves as an example for the development of estimation systems.