Detailed project description 

Clear explanation of what needs to be fabricated, including intended use and any special requirements

Technical drawings or sketches

CAD files, blueprints, or even hand-drawn sketches with dimensions, tolerances, and material specifications

Material type and thickness 

Specify the exact type of metal (e.g., stainless steel, aluminum) and the required thickness for each component

Quantity

Number of units needed for each part or assembly.

Timeline

Desired delivery date or project deadlines

Finishing requirements

Any specific surface treatments, coatings, painting, or polishing needed.

Assembly or welding details

Indicate if parts need to be welded, assembled, or shipped separately.

Budget constraints

If there is a target price range or budget, this can help tailor the bid.

Delivery location

Address or site for delivery, and any special shipping or handling needs.

Contact information

Name, phone, and email for the person responsible for the project, plus any alternate contacts for technical questions.

Previous experience or reference projects: 

If relevant, any similar projects or reference parts to help clarify expectations