... Composition 1) Coil car: Main structure: it is composed of steel, wheel, guiding pole,transmission shaft, etc. Weight capacity: 10 ton ... Hydraulic decoiler:a. Main structure: it is composed of steel plate, four arc steel plate, slide block, main shaft, side board, bearing ... operation, reduces cost 4) Roller is made of solid bearing steel; grind it after thermal treatment, good abrasion resistance and ...