Foundry

Looking for trusted, high-quality sand casting services for your industrial project? 🏭
Leesh Holdings delivers top-tier custom gray iron castings and ductile iron castings, manufactured with precision sand casting technology, perfectly suited for machinery, automotive, valve, agricultural and engineering applications.
🌏 We support global standard grades across major markets:
🇺🇸 USA (ASTM Standards)
Gray Iron: ASTM A48 Class 20 / 25 / 30 / 35 / 40 / 45 / 50
Ductile Iron: ASTM A536 60-40-18, 65-45-12, 80-55-06, 100-70-03
🇪🇺 Europe (EN / DIN Standards)
Gray Iron: EN-GJL-150 / 200 / 250 / 300 / 350
Ductile Iron: EN-GJS-400-15 / 450-10 / 500-7 / 600-3 / 700-2
🇦🇺 Australia (AS Standards)
Gray Iron: AS 1830 Grade 150 / 180 / 220 / 260 / 300
Ductile Iron: AS 3679 Grade 400-15 / 450-10 / 500-7 / 600-3
✅ Complex custom shapes & mass production available
✅ Strict in-house quality inspection & full machining service
✅ Excellent durability, corrosion resistance & mechanical performance
✅ Competitive factory direct pricing & on-time global delivery
✅ From prototype to bulk large batch orders
No matter simple small cast parts or heavy industrial valve bodies, gear components, structural brackets — we can make it exactly to your drawings and requirements!
👉 [email protected], https://www.leesh.cn https://www.chinafoundrygroup.com with your drawings and project details, get your free custom quote now!
Tag an engineer, procurement manager or manufacturing business that needs reliable casting suppliers!

Customized Duplex Stainless Steel Pump Body​
Leesh Investment Casting Foundry specializes in high-precision lost wax casting of complex metal components, with a focus on customized duplex stainless steel and various steel alloy.
Dimensional tolerances: CT5-CT7​
Surface finish: Ra 1.6-3.2 μm​
Complex internal geometries with thin walls (0.3mm minimum)​
Near-net-shape production reduces machining costs by 40-60%​

Critical Applications:​
Mining -Acid-base environment
Oil & Gas: Downhole tools, valve components, flow control equipment​
Chemical Processing: Reactor parts, heat exchangers, piping systems​
Power Generation: Turbine components, boiler systems​
Marine: Propulsion systems, offshore structures

https://chinafoundrygroup.com/product/customized-duplex-stainless-steel-pump-body-precision-cast/

For more information, please contact [email protected]