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About Us

Ningbo Zhenhai Mingzhi Brass Valve Co., Ltd. is a professional manufacturer specializing in brass valves, plumbing fittings and custom-forged brass components. Together with Ningbo Guolong Trading Co., Ltd., we provide integrated manufacturing, sales and export services for customers in the HVAC, plumbing and water-control industries.

Our production facility in Ningbo, China, covers the complete manufacturing process—from mold development, material cutting and hot forging to CNC machining, threading, deburring, ultrasonic cleaning, pressure testing, inspection and packaging. With in-house tooling capabilities, modern production equipment and experienced technicians, we can maintain consistent quality while responding efficiently to customized requirements.

We work with materials such as CW617N European-standard brass and can provide alternative brass grades based on product specifications and market requirements. Material certificates are available for each production batch.

Our product range includes gate valves, globe valves, ball valves, check valves, pressure-reducing valves, float valves, safety valves, air-release valves, fire-protection valves, water strainers, whole-house pre-filters, brass fittings and custom forgings.

MINGZHI provides flexible OEM and ODM services, including product development, custom molds, private branding, samples, trial orders and volume production. Every product undergoes strict inspections for dimensions, threads, surface finish, air tightness and water-pressure performance before shipment.

Backed by factory-direct pricing, transparent cost control, fast sampling and professional export support, we are committed to being a reliable long-term manufacturing partner for customers worldwide.

WHY CHOOSE US

Company Advantages

OEM / ODM CUSTOMIZATION

Customized OEM/ODM production for HVAC & drainage — new die development, trial orders and long-term repeat programs.

RAW MATERIALS

Stocked CW617N (CuZn40Pb2) EU-standard brass bars, with HPb58-2 substitute available. Every batch ships with a material certificate.

IN-HOUSE MOLDS

Custom H13 4-cavity hot forging dies developed in-house — die life up to 500,000 strikes, paid separately or spread into unit price.

STRICT QUALITY CONTROL

Air-tightness & water pressure tests, thread go/no-go gauges and full dimension checks — every part deburred and cleaned. No defective parts shipped.

Sample in 7 days · Mass production delivered in 12 days after 30% deposit · Orders of any size accepted.

OUR FACTORY

Inside Our Workshop

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