Roof Roll Forming Machine, Slitting Line, Stud and Track Forming Machine manufacturer / supplier in China, offering 914mm Metal Roll Forming Machine Zinc Tile Roofing Sheet Making Machinery Core Components Inclusive of Bearing Gear, High-Performance Double Deck Roofing Panels Roll Forming Machine for 914 mm Width Coils, High Speed Double Layer Trapezoidal Roofing Sheet Roll Forming Machine Tile Making Machine and so on.