Cold roll forming technology has been widely used for its energy saving, environmental protection and high efficiency. Highway guardrail machine products have also been widely used in many industries such as construction, bridges, vehicle manufacturing, container production, ...
Sigma Post for W Beam Highway Guardrail We supply sigma post and other accessories for W beam highway guardrails and road barriers. Sigma posts are manufactured from Q235B steel material with heavy zinc coating corrosion protection. Sigma Posts, Hot Dipped Galvanized ...