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Seal design also varies, with common designs being single-acting, double-acting, and U-cup seals
hydraulic ram oil seals. The choice depends on the specific application requirements, such as pressure, speed, and duty cycle. Additionally, some advanced designs incorporate anti-extrusion rings to prevent seal deformation under high pressure.

5. Low Maintenance Asphalt roofing panels require minimal maintenance compared to other roofing materials. Regular inspections and cleaning can help extend their lifespan, but they do not require the same level of upkeep as products like wood shingles, which may need to be treated for pests and rot.
asphalt roofing panels
