Hebei Hankai hydraulic press oil seal


This particular oil seal is designed to accommodate a shaft diameter of 50mm while sealing against a housing with an outer diameter of 90mm, ensuring tight closure and effective sealing. The 10mm width is optimal for creating a sufficient sealing surface to prevent leakage while maintaining a low profile in installations.
50x90x10 oil seal

As commonly made out of concrete, cast iron, or a combination of concrete and iron, manhole covers are made for the safety of anybody passing above the hole of a sewer. At the same time, standard manhole cover size is being designed to fit in a person size as its second purpose is through it, technically trained individual can pass through it when maintenance is needed on the sewer or during the call of fixing on the underground pipes.
3. Aesthetic Value In addition to their functional role, drainage covers can also enhance the aesthetic appeal of an area. Custom-designed covers can blend seamlessly with the surrounding architecture or landscape, showcasing creative designs and improving the overall look of public spaces.
drainage covers and frames
