OEM ODM WCB A216 WCC or QT500-7 Resin Sand Cast Towing Trailer Hitch Hooks CNC with Selected Quench Temper Condition
Direct factory support
Get a quote that fits your project
Send your drawing or product reference, material grade and required quantity. Relia will review the requirements with you.
- Drawing & specification review
Confirm the supply scope and critical requirements.
- Samples before custom production
Review inspected samples before approving a batch.
- Inspection documents
Agree material and dimensional records for your part.
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Sizeas per drawing
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Surface Treatmentas per drawingMaterialsas per drawing
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Product nameCast Towing Hook,trailer hitch hook castingOther namecast tow hook,towing hook casting
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MaterialWCB,A216 WCC,QT500-7ApplicationTrailer / Vehicle Towing
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ServiceOEM ODM CustomizedTolerance±0.01~±0.05mm or as per drawing
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Drawing Format2D/(PDF/CAD/DWG/DXF)3D(IGES/STEP/VDA)InspectionMT Magnetic Particle Test, Load Test
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Quality ControlStrictly 100% InspectionProcessResin Sand Casting+CNC Machining
Trailer and vehicle towing hooks can be requested through OEM/ODM resin-sand casting and CNC machining. Material choices are WCB, A216WCC or QT500-7, with steel and ductile-iron requirements selected independently. Define the actual hook or hitch geometry and complete specification for the component.
Set material condition and towing duty
Quenching and tempering requires the applicable alloy, procedure and final condition agreed for the design. State the required towing capacity, working load and service conditions for the selected hook. Show attachment and mating relationships with the actual vehicle or trailer assembly.
Assign CNC and supplied-interface limits
The tolerance reference is ±0.01–±0.05 mm or according to drawing. Identify affected dimensions and processing stages, with locating references and measurement conditions for acceptance. Define the final surface and contact requirements around the selected material and hook design.
Separate inspection and load-test coverage
Strict 100% inspection is stated for component approval. MT magnetic-particle inspection and load testing require their own methods, coverage and acceptance criteria. Identify the material, dimensional and test records needed to accept the selected towing component.
- Provide 2D PDF/CAD/DWG/DXF or 3D IGES/STEP/VDA information.
- State hook or hitch quantity and the controlling assembly revision.
- Explain the initial-component assessment required at attachment interfaces.
- Retain accepted grade and test-scope decisions within the part definition.
Confirm subsequent hooks against the approved trailer or vehicle towing design and supplied condition.





