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Mechanical seals are sophisticated and complex mechanical components. They are used to protect machines and bearings from liquid leaks. Mechanical seals can be used to install and operate pumps and other equipment and are devices that act as seals To ensure the normal use of the machine at the same time, but also to ensure the safety of daily work › See more product details; Product description H75-65 H75N Multi-Spring Mechanical Seals, Shaft Size 65mm, with Seat G9 or G115 for Water Pump; Product description H75-65 H75N Multi-Spring Mechanical Seals, Shaft Size 65mm, with Seat G9 or G115 for Water Pump; H75-65 H75N Multi-Spring Mechanical Seals, Shaft Size 65mm, with Seat G9 or G115 for Water Pump