fiberglass frp U channel, C channel, fire-resistant, UV-protection, Chemical resistant, ABS certificate We ... , 25mm, 38mm, 50mm thickness and profiles can be I-beam, L-angle, C-channel, T-bar, Round tube, Square tube, Y-beam ... .52551214776.838.56.41919888155115198835515411014080105850111504010448512150458374413178606.35369014203559.55798 Fiberglass frp U channel, C channel