2D drawingPDF, DWG, DXF
Drawing-Based Metal Parts
From your drawing to a production-ready metal part.
Send a 2D drawing, 3D file, sample, or worn part for custom metal parts made to your requirements. JK Casting's Gaomi works, founded in 2002, reviews manufacturability, material, machining, surface treatment, inspection, and packing, then quotes the practical production scope.
2D & 3D files
Physical samples
Low-to-mid volume
Inspection records
Best RFQ input
Send what you have.
Drawing
STEP
Sample
Photos
Geometry, material, tolerances, machining stock, finish, quantity, and critical inspection points.
Quotation inputs
Start with the information already available.
3D modelSTEP, STP, IGES
Sample or photosNew or worn part
Project detailsMaterial, qty, finish
Flexible starting point
Three practical ways to begin a custom metal part project.
You do not need a complete sourcing package before contacting us. The first review identifies missing information and the fastest route to quotation.
Drawing or 3D model
We review geometry, material callouts, tolerances, machining stock, surface finish, and critical dimensions.
Physical sample or worn part
Useful for replacement parts, obsolete components, maintenance projects, and situations where original drawings are unavailable.
Performance requirements
Share load, fit, service environment, target life, installation constraints, annual usage, and inspection expectations.
One controlled supply route
One supplier for the complete drawing-based scope.
Instead of quoting only one operation, we review the whole route required to deliver a usable component, all under one roof. Sand and investment casting, CNC machining, heat treatment, surface finishing, and inspection run in-house, which helps avoid gaps between casting, machining, coating, and final inspection.
Cast iron, ductile iron, cast steel, and selected alloys
CNC turning, milling, drilling, boring, and tapping
Painting, powder coating, plating, and corrosion protection
Dimensional inspection and project-specific records
2D / 3DDrawing and model review
1 sourceCoordinated production route
RFQ-readyClear scope before pricing
Quotation workflow
How a drawing-based project moves from RFQ to shipment.
A defined review sequence keeps quotation assumptions visible and reduces production changes after order confirmation.
Receive files
Drawing, model, sample photos, material, quantity, and application details.
Review feasibility
Process route, draft, wall thickness, machining access, tolerances, and finish.
Confirm scope
Open questions, drawing revisions, inspection points, packaging, and commercial terms.
Produce & inspect
Tooling, sample approval, batch production, machining, surface treatment, and checks.
Pack & ship
Part protection, labeling, export packing, inspection documents, and dispatch.
Key principle: quote the confirmed scope, not assumptions.
Any missing tolerance, coating, test, or packaging requirement should be clarified before order placement.
Drawing-led inspection
Inspection follows the drawing and the part's real function.
We identify critical dimensions and inspection requirements during quotation, then match the check method to the feature—rather than treating every dimension the same.
Critical dimensions
Machined bores & fits
Thread and hole position
Material verification
Surface treatment
Packaging protection
Typical project fit
Built around the drawing—not a catalog number.
This service is designed for parts that require review, production planning, and controlled manufacturing rather than off-the-shelf purchasing.
New custom component
For machinery builders developing a new cast or machined component from approved engineering data.
- Prototype or sample stage
- Drawing revision support
- Repeat production planning
Replacement or obsolete part
For worn, unavailable, or discontinued metal components where a sample, measurements, or partial documentation exists.
- Physical sample review
- Low-volume requirements
- Functional replacement focus
Cast + machined assembly part
For projects that need coordinated casting, machining, treatment, inspection, and export packing.
- Single RFQ scope
- Multiple process control
- Project-specific documentation
Send one drawing. We'll tell you what is needed next.
Share your files, sample photos, material, quantity, application, and critical requirements. The first review will identify the quotation scope and any information that still needs confirmation.