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Years of Experience

About East Sea Machinery

Ningbo East Sea Machinery Co., Ltd(ESM)was established in 2002 and specialized in producing door locks, latches, hinges, folding steps and handles for trucks, trailers, special vehicles, vessels, toolboxes and etc.

Our company was located in Ningbo city of China, and it currently has about 8000 square meters of production area and excellent employee team more than 100 persons. Meanwhile we have passed ISO9001 certification.

We have the capability to develop and design, and also supply many kinds of materials for casting parts, stamping parts, forging parts, CNC machining parts and sheet metal fabrication. And many overseas customers are from USA, Canada, Australia and European countries. ESM strives for excellent quality, attractive price, prompt delivery and good service.

Why East Sea is Your Gateway to Success.

We deliver precision-engineered hardware solutions for commercial vehicles and industrial applications. Backed by decades of expertise, certified quality, and strong global partnerships, we help you drive efficiency, durability, and performance through OEM innovation.

100 + Enterprise employees
8000㎡ Factory area
10M+ OEM Units Delivered

20 Years of Expertise

Founded in 2002, we focus on locks, hinges, folding steps, and handles—refining every detail with precision and durability trusted across industries.
Custom R&D Support

Our engineers work with clients from concept to production, optimizing structural design, usability, and cost-effectiveness.
Premium OEM Quality

We use high-grade materials and implement strict quality standards. Our products outperform industry benchmarks in durability and service life.
Trusted by Global Leaders

Serving partners in the USA, Canada, and Australia, we’ve delivered over 10 million OEM products with proven reliability in demanding environments.
Agile Production

From casting and stamping to CNC machining and sheet metal fabrication, our integrated production ensures rapid response and customization.
Quality Assured

Our ISO9001-certified facility upholds rigorous quality systems, ensuring consistency, compliance, and confidence in every shipment.

The History of East Sea

2002

2010

2022

Present

Founding and Establishment

Ningbo East Sea Machinery Co., Ltd. was officially established on December 31,2002. Our company was located at No. 238 Zhenxing Road, Qiuai Town, Yinzhou District, Ningbo City, Zhejiang Province.It’s a convenient transportation in here, and laying a good geographical foundation for the future business operations.

Business Expansion & System Development

Our company completed a crucial stage of business expansion and system development by strengthening its focus on core products—door locks, latches, hinges, folding steps, handles, and accessories for trucks, trailers, special vehicles, ships, and toolboxes—while simultaneously extending its manufacturing capabilities to include die-castings, castings, stampings, forgings, CNC machined parts, and sheet metal fabrications. During this period, we partnered with U.S.-listed company EBHARD to jointly develop over 200 types of automotive hardware accessories, building a stable OEM customer base and gaining a strong reputation for product reliability and diversity.

Customer Scale Expanded & Technological Advancement

Our company achieved significant growth by expanding its customer base and successfully entering key international markets, including Canada, the U.S., Australia, and the U.K. Alongside this commercial success, we continuously advanced our technological capabilities, upholding rigorous quality standards that positioned our products at the forefront of the industry. Notably, we introduced electrically controlled versions of our standard products, combining enhanced performance with user-friendly operation—an innovation that received widespread recognition and reinforced our reputation for quality and innovation in the global market.

Sustainable Development & Stable Operations

Our company completed a strategic transformation by evolving into an integrated manufacturing and trading enterprise, fully leveraging our existing factory resources. To expand market presence, we increased investment in digital channels—joining Alibaba International to boost product exposure and launching an independent website to enhance brand identity and attract targeted customers. At the same time, we broadened our product portfolio by introducing complementary items based on market insights, creating a diversified offering that opened new customer acquisition channels and laid a solid foundation for sustainable growth and long-term operational stability.

East Sea Factory Tour

Professional Manufacturing Solutions Tailored to Your Needs

Certificates and Honors

Our high-quality products and expertise have earned numerous industry-recognized certifications.

Explore Our FAQs for Quick Solutions

Are you a factory or trading company?

We are a company that integrates industry and trade, specializing in the production of door locks, latches, hinges, folding steps, and handles for trucks, ships, trains, toolboxes, engineering vehicles, special vehicles, and more. We can provide OEMODM Service For You.
Where factory locates?

Our company is located in Ningbo city of China. We currently have about 8000 square meters of production area and excellent employee team more than 100 persons. At the same time we passed ISO9001 certification.
What can you buy from us?

locks,latches,hinges,handles,folding steps,various hardware tools.
Why should you buy from us not from other suppliers?

We are a professional manufacturer for truck door locks, latches, handles, hinges, folding steps and etc. More than 23 years experiences, believe quality and price are highly reliable.And we also supply OEM service.
Can you make custom design?

Of course.If it is the product we are manufacturing, we can deal combine various components to meet customers' requirements; If it is the product we are not manufacturing, we can also accept orders, But we will charge the mold fee and require MOQ ofcustomized products.
What kind of transportation can you provide?

We can provide express, sea,and air transportation depending on your order quantity and actual situation.

Your One-Stop Customization Solutions

We can provide high-quality customized solutions, ensuring every step is precise, efficient, and satisfactory.

Requirements Communication

Clients communicate their customization needs through online consultation, phone communication, or offline negotiations, including product type, functional requirements, appearance design, and packaging specifications.

Design & Sampling

Based on confirmed customization plans, our design team creates product designs and technical drawings. We complete sample production within 30 working days for client confirmation.

Batch Production

After sample approval, we formulate production plans, arrange raw material procurement and production scheduling, following standardized processes and quality control systems.

Quality Inspection

Our quality inspection team conducts comprehensive testing including appearance inspection, functional testing, and performance testing to ensure every product meets requirements.

Packaging & Shipping

Qualified products are packaged according to client requirements, with appropriate logistics methods selected for shipping, and tracking information provided to clients.

Customer-Centered Approach

Incorporate testimonials from clients around the world to emphasize trust and satisfaction.

We’ve been sourcing whale tail locks from this supplier for over two years now. The zinc alloy structure and corrosion-resistant finish hold up perfectly in the field, even through our Midwest winters. Zero issues with reliability — just great performance.

Danie

These Type I handles have been a solid upgrade to our fleet. The grip is ergonomic, even with gloves on, and the surface finish resists rust very well. We had one unit with a slightly tight latch, but it was easily adjusted. Overall, excellent quality and feel.

Mateo

We use these 304 stainless steel latches on our industrial outdoor storage boxes. Their durability is impressive — no corrosion even after months of rain and salt exposure. The latch action is crisp and secure. Highly recommend.

Klaus

Top-tier stainless steel hinges. We use them on custom trailer doors, and they’ve been through harsh coastal weather without a single issue. The load capacity is more than sufficient and they’re easy to install. Excellent value for money.

Liam

The folding steps are incredibly space-saving and feel stable when in use. We chose the steel version for cost efficiency, and so far it's been reliable across various vehicle types. Slightly heavy, but very sturdy and safe.