Semi-Trailer Market Size and Forecasts (2020 - 2030), Global and Regional Share, Trends, and Growth Opportunity Analysis Report Coverage:by Number of Axles (Less Than 3 Axles, 3 to 4 Axles, More Than 4 Axles); Type (Flatbed, Lowboy, Dry Van, Refrigerated, Tankers, Others); Tonnage (Below 25 Tons, 25 Tons and 50 Tons, 51 Tons and 100 Tons, Above 100 Tons) , and Geography (North America, Europe, Asia Pacific, and South and Central America)