Product Name: Face Seal Type: Hydraulic Power Units HS Code: 8484100000 Product Description Wuhan Huafeng Mechanical Manufacturing Co., Ltd is Located in Wuhan, China. Our main product is seal groups(floating seal), which is used in roller of large engineering machinery and tracklayers.We can supply you with good quality and high precision product for factory and aftermarket. Our products can be used as OEM parts of Komatsu, Sumitomo, HITACHI, Kato, Caterpillar, Deawoo, Hyundai, Kobelco, and so on.Life time: 5000-8000hoursThe working surface hardness: HRC 60-72Roughness of abrasive surface: GB1031-68, Ra0.02- 0.032 µ MWide range of temperatrue of application: From: -50Cto 120C