Source Quality Castings From Vetted Chinese Foundries.
We help overseas buyers source investment castings from qualified Chinese manufacturers — with process guidance, supplier audit, production follow-up and pre-shipment quality control. Your single point of contact on the ground.
Castings Sourced With Less Risk.
Materials We Source
- Stainless steel castings
- Carbon steel castings
- Low & medium alloy steel
- High manganese steel
- Nickel-based alloys
- Cobalt-based alloys
- Non-ferrous alloys
- Vacuum casting for Ni/Co superalloys
Foundry Audit
Every foundry is vetted for capability, equipment, quality system (ISO 9001+) and relevant casting experience before we source from it.
Process Guidance
We recommend the right casting route — investment casting, sand casting or another method — based on your geometry, tolerance and cost target.
Quality Control
Dimensional inspection, material verification, surface checks and pre-shipment release testing are coordinated against your specification.
Castings We Source for Overseas Buyers.
We source investment castings for valves, pumps, industrial machinery and custom OEM programs — matched to the right foundry for each alloy and geometry.
Valve Components
Stainless and alloy steel valve bodies and internals sourced from foundries with flow-control experience.
Pump Components
Pump bodies, casings and impellers with verified material and pressure-boundary quality.
Industrial Machinery
Structural and mechanical castings sourced for machinery and equipment builders.
OEM / Custom Programs
Drawing-based sourcing with full technical coordination — small batches through to volume production.
Investment Casting FAQs
How does GRDH Precision source investment castings from China?
We evaluate your drawing, recommend the right casting process, identify and audit qualified Chinese foundries by capability and quality system, coordinate quotes and orders, follow up production, and carry out pre-shipment quality inspection — so you receive castings that meet your specification.
What casting materials can you source from China?
We source castings in stainless steel, carbon steel, low- and medium-alloy steel, high manganese steel, nickel-based alloys, cobalt-based alloys and non-ferrous alloys, matched to foundries with the right equipment and experience for each alloy group.
Do you audit the foundries you source from?
Yes. Every foundry is audited for manufacturing capability, equipment, quality management system (ISO 9001 and related certifications), relevant industry experience and project fit before we source from them.
What quality control do you provide on cast parts?
We coordinate dimensional inspection, material verification, surface and visual checks, functional testing and any other quality items in your specification. Pre-shipment inspection and quality documentation are standard before release of goods.
Can you help with vacuum casting for superalloys?
Yes. We source vacuum-investment-cast parts in nickel-based and cobalt-based superalloys from foundries equipped with vacuum melting furnaces, suitable for high-temperature and corrosion-resistant applications. Learn more about when vacuum casting is required.
How long does it take to get a casting sourcing quote?
Send your drawing with material, quantity and tolerance requirements. We review the drawing, identify suitable foundries, and typically return a transparent, itemized sourcing proposal within 24–48 hours.
Need a Trusted China Sourcing Partner for Castings?
Send us your drawing. We’ll recommend the right process, audit qualified foundries, and come back with a transparent sourcing proposal within 24–48 hours.