... bitumen and crude oil in cold region area,etcThe specification of the trailer Overall weightKg50,000Curb weightKg8,800Rated loading weightKg40, ... extra durability designed I beam; Middle Flange 6 or 8mm; Bottom Flange 16mm,width 140mmAxles 3 axle with FUWA ... is completely shot blasted, and painted with first layer of international Zinc Epoxy primer, second layer international high built polyurethane ...