... profiles ranges:I-beam, H-beam, U-profiles, angle, square tube, round tube, square and round rod, kickplate, Omega hand rail, thickness ... , surfacing mat, needled mat. 2. matrix materials: unsaturated polyester resin, epoxy resin, vinylester resin.The pultrusion technique:During the pultrusion process,the raw material ... ,bracket for huge industry cooling tower,etc. fiberglass foam filled tube