FRP/GRP Square Tubes are commonly used in the production of frames, rails, supports, and modular construction elements. The square cross-section offers resistance to torsion and bending, important for structures needing stability. They are also corrosion-resistant, enhancing ...
Direct Square Tube Mill Line is mainly used to produce the square and rectangular tubes directly, from square to square or rectangular to rectangular directly. As a professional square tube machine manufacturer, Hangzhou Roll Forming offers high-end square tube mill production ...
Posts are manufactured conforming to FHWA and ATSSA standard. Steel material conforms to ASTM A1011, Grade 50. Yield strength after cold-forming is 60,000 psi minimum. Posts are manufactured from hot-dipped galvanized steel conforming to ASTM A653, G90 or G140. The posts are ...