Ningbo East Sea Machinery Co., Ltd (ESM) was founded in 2002 and specializes in manufacturing door locks, latches, hinges, folding steps, and handles for trucks, trailers, vessels, and special vehicles. With a strong focus on quality and efficiency, we have become a trusted partner in the vehicle component industry. Located in Ningbo, China, ESM operates an 8,000 m² facility and employs over 100 skilled workers. We are ISO9001 certified and committed to delivering precision-engineered components with competitive pricing and on-time delivery for customers worldwide.
With in-house design and a complete production chain, ESM ensures consistent quality and fast turnaround. We produce high-precision components for global markets, supported by strong technical capabilities and strict quality control.
We offer a full range of services, including product design, engineering, and fabrication of casting, stamping, and CNC parts. Our flexible OEM/ODM support enables customized solutions for clients across the US, Europe, and beyond.
In the commercial vehicle and heavy-duty truck industry, hardware reliability isn’t just a luxury—it’s the absolute baseline. Whether traversing the dusty expanses of the Australian Outback or enduring the freezing, salt-covered roads of North American winters, truck accessories are pushed to their limits.
Convert standard truck toolbox locks to high-security Euro cylinders with ESM's modular adapter kit. Save tooling costs with our no-drill OEM solution.
Canadian OEM needed 30–40% lower operation force on Model 19305 paddle latch. See how East Sea Machinery delivered two spring options in 24h—ergonomic, glove-friendly truck tool box latch. OEM/ODM Ningbo.