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About Our Foundry

Zibo Geluobao Precision Casting Co., Ltd. is a specialized stainless steel investment casting foundry located in Boshan Economic Development Zone, Zibo City, Shandong Province, China — the heart of China's casting and pump industry base. We focus exclusively on stainless steel and high-alloy steel precision castings, serving global buyers in the pump, valve, oil & gas, chemical processing, marine, and industrial equipment sectors.

Unlike generalist foundries that spread across dozens of material types, our specialization in corrosion-resistant and high-performance alloys means deeper process expertise, better quality consistency, and faster response times for your stainless steel casting requirements.

What We Do Best

Stainless Steel Castings — CF8/CF8M, 304, 316, 316L, 317, 904L
Duplex & Super Duplex — 2205, 2507 (UNS S32750), Zeron 100
Precipitation Hardening — 17-4PH, 15-5PH
Heat-Resistant Alloys — HK40, HH, HP-Nb, Incoloy series
Nickel-Based Alloys — Monel, Hastelloy, Inconel grades

What Sets Us Apart

No mold required — Lost foam / lost wax eliminates tooling costs
Small batch friendly — No minimum order, 1 piece accepted
Rapid lead time — First samples in 2–4 weeks
Complex geometry — Thin walls, internal passages, near-net-shape
In-house machining — CNC + MC reduces handling time

Industries We Serve

Our stainless steel investment castings are trusted by OEMs and engineering companies across demanding sectors where corrosion resistance, pressure integrity, and dimensional precision are non-negotiable.

Chemical Processing

Oil & Gas (Upstream / Midstream)

Pump & Compressor Manufacturing

Mining & Mineral Processing

Water & Wastewater Treatment

Power Generation

Pump Parts: Centrifugal pump bodies, multistage pump casings, vacuum pump housings, chemical pump volutes, slurry pump liners, submersible pump components, double suction pump bodies, mixed flow pump impellers, API pump parts

Valve Parts: Gate valve bodies, globe valve bodies, ball valve bodies, butterfly valve discs, check valve internals, safety valve components, control valve trim

Industrial Components: Roots blower rotors, bearing housings, flanges, pipe fittings, mechanical seal glands, marine hardware, custom engineered castings

Production Capacity & Capabilities

Annual Output	1000+ tons of stainless steel & high-alloy precision castings per year
Melting Equipment	5-ton medium-frequency induction furnace — enables single pours up to 3,000 kg
Casting Weight Range	0.5 kg – 3,000 kg (typical IC range: 0.2–80 kg; large-format lost foam: up to 3 tons)

Min Order Quantity	No minimum — Prototype, small batch, and volume production all accepted
Lead Time (First Article)	2–4 weeks from approved drawing/sample
Volume Capacity	10,000+ pieces/month for standard pump & valve components