Efficient C16 Trapezoidal Profile Roll Forming Machine High Speed Automatic Steel Wall Plate Profiling Machinery The C16 roll forming machine, manufactured by Dongguang Hengfu Roll Forming Machinery Co., Ltd., is a high-performance cold-forming equipment for producing YX12-103-1030 trapezoidal metal panels. It completes the whole production workflow including decoiling, manual-adjust feeding, multi-pass roll forming, fixed-length hydraulic cutting and finished-sheet output.