Wenzhou Huahai Sealling Co., Ltd. was founded in 2001 and is located at No.50 Xingji Road, Yongxing Sub-district, Longwan District, Wenzhou City, Zhejiang Province. For over two decades, Huahai has specialised in the research, development and manufacture of metal seals for petrochemical pipelines and drilling & production equipment. As a major drafter of national and industrial standards for metal seals, Huahai has been accredited as a National High-tech Enterprise and a Zhejiang Hidden Champion Enterprise. A council member of the China Petroleum and Petrochemical Equipment Industry Association（CPEIA）, China Hydraulics Pneumatics and Seals Association-Stuffing and Static Sealing Professional Sub Association（CHPSA）, and China Friction & Sealing Materials Association（CFSMA）, Huahai holds ISO 9001 international quality management system certification, American Petroleum Institute API 6A and API 17D certifications. It has also obtained the Produetion License of Special Equipment People's Republic of China (for pressure pipeline flanges), PED/AD2000 certification (EU Pressure Equipment Directive) .enabling it to supply dependable products and satisfactory services for global clients. To meet clients’ stringent manufacturing requirements, Huahai is equipped with world-class precision processing machinery, including Japanese Mazak and Tsugami machine tools, Korean Doosan lathes and large vertical lathes.Its inspection equipment contains Hexagon Coordinate Measuring Machine (CMM), Oxford desktop and handheld spectrometers, optical imagers, desktop hardness testers and Roughness profiler. Its full range of metal sealing products covers R, BX, RX and IX type metal ring gaskets, lens gaskets, Weld-ring gaskets and valve gaskets. These products are widely deployed in Christmas trees, petrochemical pipelines, wellhead assemblies, petrochemical valves and drilling-production equipment. Thanks to consistent quality, outstanding sealing performance and strong compatibility, Huahai’s products are exported across the globe and have earned wide recognition and trust from customers at home and abroad. Upholding the development philosophy of “Craftsmanship for Premium Products, Innovation for a Promising Future”, Huahai Seals continues to focus on the niche metal sealing sector. Committed to technological innovation and quality improvement, the company strives to supply high-performance sealing solutions and one-stop supporting services for global clients, and keeps contributing to the high-quality development of the sealing industry.