Bulk Cargo Side Wall Semi Trailer is suitable for medium/long distance transportation of medium/heavy cargo and bulk cargo. The whole car body is made of high-quality steel or aluminum, and is manufactured with advanced technology and a strict production management process. The frame is a wear-resistant structure, and the web made of 400 mm to 550 mm high manganese plates welds the upper and lower wings together, and the beam runs through the longitudinal beam, and the two parts are made into a very strong whole by automatic submerged arc welding.