Hot dipped galvanized corrugated beam barrier is the product based on cold bent steel sheet and welded steel pipe, then hot dip galvanizing the inside and outside surface to make them adhered together tightly with long-term stability. The basic material of galvanized barrier is carbon structural steel, which mechanical performance is no worse than requirement of Q235 in Chin ese standard GB/T700-1988, so bears good mechanical strength and impact resistance, the barrier surface covered by best zinc of 0# or 1# per hot dip galvanizing, by hot dip galvanizing method, zinc will cohered with steel tightly with even thickness and shining and smooth surface. Other advantages as high capacity of coherence high hardness and anti-decompose.