Multi Select DropDown list from data on another sheet

I am wanting a multiple select drop down list that gets its data from another list.

Basically I have a list of our equipment along with the current cost in another column. in Column 3 I have combined text of equipment name + price . I want this to be my drop down list in another sheet that will be the equipment order request form. The user can select which items they need ordered and see the current cost/price from column 3 in the cost sheet.

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