... Crrugated Steel Pipe/Plate 2.Pipe for Road culvert,mining,civil use 3.SS400 Q23 4.Galvanized and powder coated Flanged Crrugated Steel Pipe/Plate ... direction, and combination displacement. The application fields of Assembly Corrugated Steel Culvert1.Highway and railway: culvert, passage, bridge, tunneling overhaul ... ≥63μm; Reantiseptic (genearlly coated asphalt) Flanged Crrugated Steel Pipe/Plate