How are the auxiliary materials for insulation of equipment and pipelines determined?

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Dear friends: I have a question to ask: regarding the insulation materials for equipment and pipelines, I am currently compiling a list of materials needed for the project. The total insulation area of the tower equipment, heat exchanger equipment, and pipelines in our distillation plant is 5000 m2 ； The insulation area of the workshop equipment is 3000 m2 ； The insulation area of the pipeline is 2000 m2 ； I have already counted the main materials for these insulation products: insulated rock wool boards, insulated rock wool pipes, and insulated aluminum panels. Other auxiliary materials for insulation materials include pull-out rivets and 18# wire, with the 18# wire being used to secure the insulation material in place. Question: In this case, what are the approximate amounts of core-pulling rivets and 18# wire required? How much should I plan to report?