Such semi trailer includes keel plate and frame type.Longeron beam adopt manganese steel plate thickness from 400mm to 550mm, Fabricated I beam. ISO Standards Twist Locks 12 Units for delivery 1*40’, 2*20’ 1*20’ ISO Standard container. Dual pipe brake system, equipped with pneumatic, exhaust brake system or ABS, various chassis equipped from 8Tons to 16Tons. I beam craft with submerged arc welding, Technique of CO_2 Gas Shielded Arc Welding make vehicles more beauty, firmly, and durable in use.