... 10T 2. Composition 1) Coil car: Main structure: it is composed of steel, wheel, guiding pole,transmission ... one piece)2) Hydraulic decoiler:a. Main structure: it is composed of steel plate, four arc steel plate ... adjustable.3) Hydraulic system:a. Main structure: it is composed of steel oil receiving case, ... is made of solid bearing steel; grind it after thermal treatment, good abrasion resistance and ...