1. Mechanical suspension seat 2. Heavy duty truck seat 3. High quality truck seat 4. Left side control seat Heavy duty truck seatFeatures and Technical parameter:1.Horizontal adjustment: operating elements left, stroke 150mm (15mm×10 )2.Height / rake adjustment: operating elements left, in fine increments up to 60mm, rake adjustable , ±12°;3.Weight adjustment: operating elements left, stroke 40~ ...