China 3 axles 4 axles heavy duty low deck truck semi lowboy trailer

Carrist Low Deck Semi-trailer Special structural requirements: 1 Low-plate reinforced semi-trailer shall be equipped with 90 # A type traction pin in accordance with GB/T 4607 and GB/T 15088, which can be interchanged and matched with the vehicle and meet the relevant provisions of GB/T 4606 and GB/T 15088. 2. High-strength steel with yield strength greater than 700MPa should be used for the main load-bearing components such as the frame longitudinal beam and the load-bearing panel beam of the low plate reinforced semi-trailer.