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When engineering firms, architectural firms, scientific firms or inventors need their concepts illustrated, they hire drafting service firms. Drafting services specialize in using architectural and engineering specification to create detailed layouts, plans and illustrations of buildings, structures, machines, and systems. All drafting firms in this day and age use AUTOCAD, CAD and other programs to create detailed drawings, illustrations and plans on the computer. Some drafting firms also utilize drafting tools to hand-draw illustrations and plans. Some drafting services specialize in architectural drafting. Some drafting services specialize in doing drafting work for mechanical engineers, civil engineers, environmental engineers or structural engineers. Some drafting firms specialize in geological drafting, geographic drafting, landscape architectural drafting or creating formal patent and trademark drawings.
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