Located in Foshan city, Foshan Rong Sheng Long (R.S.L.) Rubber Seals Co., Ltd. is close to the port which provides much convenience for transportation. Following the international standard, we have built a total area of over 6,000 square meters, which includes an advanced lab equipped with precise detection equipment. Besides that, we have also put a lot of investment in the introduction of complete equipment and the transformation of the workshop, so that customers can work more efficiently. Our main products including pipe seals, flange gaskets, O-ring, automotive seals, and other different types of rubbers, are widely exported to over 10 countries and regions.

We have passed the British WRAS certification and ISO9001: 2008 quality management system certification. By strictly implementing 5S management model, and we constantly strengthen the internal management, and ensure continuous improvement to meet the different needs of customers from different regions.


We adhere to the quality as the core and are always market-oriented to meet customers' needs as our main duty and pursue the "quality first, the credibility first, and customer foremost" principle. Since the establishment, we have won many trust and praises of customers from domestic and foreign countries by our high-quality service and sticking to the original intention. In the next decade, we will keep innovating the products as the soul, integrating the resources, production, marketing, services and other key links to make sure the superiority of our company.

We believe that differentiation and diversity can be the core competitiveness to keep us outstanding in the market and we aim to become a modern and competitive company in the global.


1989: Rongxing(R.X.) bakelite rubber Factory established in Longjiang, Shunde;

1996: R.X. cooperate with the Hong Kong area water sector formally, joint development of pipeline seals;

1997: R.X. officially put into production pipeline seal, and supply the Hong Kong Water Supplies Department;

2000: Rongxing plant once again moved to the new plant,  changed its name to Rong Sheng Long(R.S.L.) rubber sealing Article factory;

2000: R.S.L. passed the ISO9001 quality certification system;

2005: R.S.L. improve the technical strength,established technology research and development department;

2010: R.S.L. concerned about the community, established the student funds, donated around the school every year;

2012: R.S.L. technical innovation, in the industry took the lead in obtaining WRAS certification;

2014: R.S.L. company restructuring, attention to technical resources, allowing technology shares, renamed R.S.L. Rubber Sealing Article  Co., Ltd.;

2015: Strong combination, with the Guangdong Rubber Association, the Guangdong Rubber Industry Research Institute to establish long-term cooperative relations;

2015: Set up the  modern professional physics laboratory;

2017: R.S.L.formally established a CNC machining center;

2018: R.S.L. received 6 patent technology certificates issued by the Chinese government;

2018: R.S.L. introduces 6 sets of new fully automated vulcanization equipment;

2019: R.S.L. Company and the two major water departments of the Philippines formally reached a cooperation and established a general agent in the Philippines.