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Ningbo Loncong Metal Products Co., Ltd. delivers high-quality CNC machining, metal stamping, casting, forging, aluminum extrusion, plastic injection, and mechanical seals to industries worldwide — with strict quality control, punctual delivery, and attentive service.
Loncong is a professional manufacturer of metal and plastic parts, serving global markets since 2005. Based in Ningbo — a major sea port city near Shanghai — we specialize in OEM/ODM solutions across a wide range of industries including construction, mining, food processing, petroleum, agriculture, aerospace, marine, fishing, material handling, and mobile equipment.
Our experienced engineering team is dedicated to continuous improvement in technical capabilities and product quality, ensuring we meet diverse customer requirements with precision and reliability.
"Quality is life, Service is the aim."
We are committed to outstanding customer service and believe that fulfilling your needs is at the core of everything we do. Let’s build a beautiful tomorrow together.
From concept to completion, Loncong offers end-to-end engineering and production services with expertise in multiple processes.
Precision machining of complex parts using advanced CNC centers. Materials include aluminum, steel, iron, and more.
Blanking, piercing, forming, and drawing processes for high-volume, consistent metal components.
Die casting and sand casting for gray iron, aluminum, and other alloys with tight tolerances.
Custom profiles with burr-free finishing, ideal for structural and thermal applications.
High-strength forged components for demanding industrial environments.
Injection molding and rubber forming for seals, gaskets, and complex polymer parts.
Reliable sealing solutions for pumps, compressors, and rotating equipment.
In-house tool and die development for efficient, repeatable manufacturing.
High-precision components manufactured using advanced techniques and strict quality standards.
Casting and CNC machined by Machining Center
Precision metal component
Aluminum 6061, CNC machined
High-precision machined component
Engineered for durability and precision
Robust design, tight tolerances
Multi-process manufactured component
Gray Iron cast and CNC machined
At Loncong, quality is not an afterthought — it's built into every step of our process. From raw material inspection to final packaging, we maintain rigorous standards to ensure consistency, reliability, and compliance.
High-precision measurement tools ensure every part meets specifications.
Secure, export-ready packaging to protect your components during transit.
Experienced engineers provide design support and file optimization.
Full-service welding and assembly for complex metal structures.
For inquiries, quotes, or technical support, reach out to us directly.
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