About Us
Hebei Unna Metal Technology Co., Ltd.
We specialize in custom grey iron & ductile iron castings, focusing on pump, valve, automotive and mechanical casting parts. We provide one-stop service from casting production to CNC precision machining, supporting OEM & ODM customized processing per customer drawings.
50+
Countries
15
13
700+
Production lines
OEM Projects
Years
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Integrated production lines covering casting forming, heat treatment and CNC precision machining to deliver one-stop OEM customized castings.
Review customer drawings or samples and evaluate manufacturing feasibility.
02
Design and manufacture molds and tooling according to project requirements.
08
One-Stop OEM Manufacturing Solutions
Produce high-quality casting blanks with stable material properties.
01
05
07
From Drawing Review to Repeat Orders — Your Partner for Long-Term Success
03
Secondary machining and customized surface treatment according to customer specifications.
Remove excess material and prepare castings for precision machining.
04
06
09
Continuous Improvement
Comprehensive inspection ensures dimensional accuracy and product consistency.
Professional export packaging and worldwide shipment for safe delivery.
Track product performance, provide technical assistance and continuously improve quality to support long-term customer success.
One Partner. One Process. Complete OEM Solutions.
From drawing review to global delivery and after-sales support, we provide a fully integrated manufacturing solution that ensures quality, efficiency, and reliability at every stage of your project. Our goal is simple: make OEM sourcing easier, faster, and more dependable for our customers worldwide.
Turning, milling, boring and grinding to achieve final dimensions and tolerances.
Core Product Lines
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Pump Castings
Pump bodies, impellers, pump covers, bearing housings, flange bases and related castings.
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Valve Castings
Valve bodies, bonnets, valve discs, seat rings and custom valve castings.
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Automotive Castings
Wheel hub housings, differential housings, gearbox housings and automotive castings.
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Food Machinery Parts
Castings and machined parts for food processing, mixing, conveying and packaging equipment.
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Mechanical Parts
Equipment frames, bearing housings, gearbox castings and industrial machinery parts.
Cast Iron Parts Manufacturing
Stainless Steel Parts Manufacturing
Aluminum Parts Manufacturing
Manufacturing Capabilities by Material
Sand casting, CNC machining, and finishing for pump bodies, valve housings, equipment bases, and heavy-duty industrial castings.
Investment casting, precision machining, and polishing for corrosion-resistant pump, valve, and food machinery components.
Die casting, sand casting, and CNC machining for lightweight automotive, machinery, and custom OEM aluminum components.
From cast iron and stainless steel to aluminum, brass, and zinc alloy, we provide integrated casting, CNC machining, surface finishing, and quality inspection for custom OEM components used in pumps, valves, automotive systems, food machinery, and general industrial equipment.
Zinc Alloy Parts Manufacturing
Carbon & Alloy Steel Parts Manufacturing
Precision casting and CNC machining for brass, bronze valve parts, pump fittings, fluid control parts, and custom OEM hardware.
High-precision die casting, machining, and finishing for hardware, machinery parts, and custom zinc alloy components.
Casting, heat treatment, CNC machining, and surface finishing for carbon steel and alloy steel valve bodies, pump parts, pressure fittings, and heavy-duty industrial components.
Copper Alloy Parts Manufacturing
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