Where and what products were used
Noise barrier walls
・Single Chamfer (Type 1) & Double Chamfer (Type 2) U-NUT
M22×2.5 SS400 Hot-dip Galvanizing Coating
M30×3.5 SS400 Hot-dip Zinc-Aluminum Alloy Galvanized Coating
Sign-boards
・Single Chamfer (Type 1) & Double Chamfer (Type 2) U-NUT
M10×1.5 SS400 Hot-dip Galvanizing Coating
・Whitworth Thread Type U-NUT
W3/8 SS400 Hot-dip Galvanizing Coating
Delineators (reflectors)
・Single Chamfer (Type 1) & Double Chamfer (Type 2) U-NUT
M6×1 SUS304
Net fences
・Single Chamfer (Type 1) & Double Chamfer (Type 2) U-NUT
M8×1.25 SUS304
Handrails in tunnels
・Single Chamfer (Type 1) & Double Chamfer (Type 2) U-NUT
M12×1.75 SUS304
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