Guantong Technical Research Co., Ltd. of Beijing City was founded in 2000, integrating R&D and sales. We are specialized in manufacturing pressure seal. As our company has successfully passed GB/T19001-2008 quality management system certification and occupational health safety and environmental management system certification, the product quality and service have taken the lead in the industry thanks to the scientific and strict quality management system.

We have 25 kinds of patented products, applicable to all fields of pipeline leak. Most products are sold to CNPC, Sinopec and CNOOC. With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in pressure seal and other industries.

The tenet of our company is to develop, research and promote new techniques, new materials and new technology of pressure sealing without stopping production, and to serve the society with heart and soul. In recent years in order to promote and apply the techniques, our company has successively conducted several training programs for thousands of participants, and the participants after being trained can guard independently, who have been playing important roles in maintaining the secure operation of production equipment and facilities of our company.

We welcome new and old customers from all walks of life to contact us for future business relationships and achieve mutual success.