original GSK supplier factory

About Us


RA CO.,LTD ltd is located in the beautiful east-coast port city RUIAN,which is the perfect base for most of Auto Parts manufacturers. We are professional producing belt tensioner, tensioner pul ley, alternator pulley, timing gear & vibration damper. With solid ability of R&D, design and producing.
Our company, was founded in 2015, specializing in producing Belt Tensioner, Tensioner pulley, Alternator Pulley, vibration damper and so on. Now we have about 3500 items of tensioner and apply more than 20 kinds of utility patent; Under a complete set of the IATF 16949 Quality System, we have all kinds of advanced production and comprehensive inspection equipment; The whole process is strictly control led and inspected, from design to finished product, from raw material to assembly, from inquiry to after-service. Now our company is available for the whole set of production process, including developing, forging, producing and testing.
We develop 30 new items every month, becoming a leader of the production capacity and development intensity. Eighty five percent of our products are exported to European, South America, Australia, Middle East and so on. Our products are welcomed by our customers for their good quality. The sales volume of our products is on the top in this industry. Our company has been devoting to developing new items and being active to collecting more products information. Developing into a complete varieties and production specialization tensioner factory, we will keep study the market to meet the demand of the market at any time.
Based on the principle of “Excellent Quality, Good Service”, we sincerely welcome all customers at home and abroad to visit our company and establish friendly and long-term business relationship. We strongly believe that Engi will be your most trustworthy partner.

Our ADVA:

1. Invest 1.8 million USD
2. Use the most advanced die-casting production UTF-8 CTHD-6
3. Uses the most advanced mold production equipment TGHB-02
4. Gold-level quenching process, no deformation
5. Integrated 0.0002 airtight performance test
6. Fully autonomous and controllable management 99.999%
7. OEM ODM production can be achieved
8. we became a high-quality supplier of GSP
9. Reached cooperation with SKF
10. The export volume hit a new high in 2024
11. The number of small customers hit a new high in 2024
12. After-sales service all day every month

About Us

Contact Us

    Tel: 577 66878552

    Fax: 577 66878539

    Mobile: 15356568812

    Skype: 2088480487

    QQ: 2088480487

    WeChat: 15356568812

    Whatsapp: 15356568812

    Add: 1916534321

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