20 ft container trailer are mainly used in ports, logistics, docks and other places. Rational analysis, 42 toughness Rib Design.Ensure the safety and carrying capacity of the trailer. 20 foot flatbed trailers for sale adopts high-strength T700 steel with titanium content of 0.98 ‰, which ensures the toughness and strength of the beam and frame, and strengthens the compression resistance, load resistance and safety of the car body.