About us

About us

Think hard and start a business, treat people with integrity, innovate and develop, and care about the society

About us

Tianjin Dongya Chain Co., Ltd. was established in 1987. It covers an area of 12000 square meters and has more than 200 employees, including more than 40 professional and technical personnel, with an annual production capacity of 25 million. Our company is a scientific and technological production enterprise integrating R & D, production and sales. It applied for six invention patents in 2012 and was rated as a scientific and technological enterprise in Tianjin.


The company mainly provides high-quality transmission chains and accessories for high-end bicycles, electric vehicles, E-bike and automatic garage doors. Over the years, Dongya chain has been highly praised by many customers for its characteristics of high quality, automation, intelligent manufacturing and high-quality service. In recent years, our company has successively won the "cooperation support Award", "annual best quality award", "core supplier guarantee Award", "excellent supplier award" and other awards issued by customers. At present, we have established long-term and stable business relations with dozens of large bicycle and electric vehicle companies and foreign trade export enterprises. Our products are all over the country and sold to Europe, America, Southeast Asia, South America and other countries and regions. We enjoy a high reputation in the domestic and foreign markets, have a very broad prospect and are deeply favored by users.


The company has always adhered to the business philosophy of "thinking and entrepreneurship, treating people with integrity, innovative development and caring for the society". We constantly improve product quality and provide customers with high-quality products with advanced equipment, strong technical force and perfect testing means. At the same time, the company insists on promoting enterprise standardization, standardization and scientization, so as to improve the competitive advantage and development stamina of the enterprise. In the future, we will also continue to implement the high-quality development strategy, promote our own brands to the world, and constantly explore and surpass on the road of dreams.


Our advantage -

Since 1987
Strong technical support
Strong technical support

The company has set up a professional independent R & D team to constantly overcome technical difficulties and launch new products every year. We insist on using the best quality raw materials and the latest technology The most perfect equipment ensures that the company's products are in a leading position in the industry. In 2012, the company applied for and passed six invention patents and was rated as a science and technology enterprise in Tianjin.

Rich series of products
Rich series of products

The company independently develops and designs new products with rich and diverse product lines. At present, our products include shared bicycles, electric vehicles, urban commuters, racing cars, performance cars, children And more than ten series of hundreds of high-quality chain products.

Personalized customized service
Personalized customized service

The company has been deeply engaged in the chain manufacturing industry for many years and continuously develops new products. We always insist on using the most advanced manufacturing technology, aiming at different regions and according to the needs of customers, Create excellent products required by customers.

Good industry reputation
Good industry reputation

The company always pursues the business philosophy of "focusing on quality and customer first". In recent years, it has successively won the "cooperation support Award", "annual best quality award", "core

Our workshop

13132231216 022-23990588 dongya@dycchain.com 022-87926912