Longshen Seal Manufacture (Wuhan) Co., Ltd. (Huazhong Seal Research Institute) is a professional and specialized producer of seal, and integrates development, design, manufacture and application of hi-tech products in mechanical seal, base material, and base component integrated fields. We process a complete industry producing system of seal, hydraulic treatment, lubrication and inspection.Our company has obtained the certifications of ISO9001 and ISO/TS16949:2002 and established a complete and strict quality control system, experimental methods and an inspection system. In the condition of confirming to IS, GB and ZB standards such as ISO3069, API1610(682), DIN 24960, ENI 12756, GB6556 and HG2098/2157, we have successfully matched our products to the industry products of metallurgy, petrochemical, pharmacy, shipbuilding, paper-making, water supply and drainage, sewerage treatment, food processing and textile mill industries. We will provide products for users with the sincere, efficient and high-quality service. We sincerely invite both old and new customers to do business and cooperate with us to make glories together.