Mechanical Suspension Features:FUWA American style mechanical suspension is for Semi-trailer suspensions of 2-axle system, 3-axle system, 4-axle system, single point suspension systems are Available.Capacity for different requirements. Bogie according to special needs .Has passed the ISO and TS16949 standard authentication of international quality control system. Strict quality control system to assure our excellent product quality. Products are popular in the worldwide market, including North American, South American, European, African and Southeast Asian markets