Pin del secchio di escavatore e boccola bocchetta per boccola di ricambio meccanico
keep the oil clean: effective sealing performance can prevent dust, moisture and other external pollutants from entering the cylinder interior, keep the oil clean, prolong the service life of the oil and equipment..syi isolate the internal and external environment: the main role of the cylinder liner is to isolate the hydraulic cylinder from the external environment, ensure the stable flow of oil in the cylinder body, and avoid oil leakage or the entry of external impurities.