Q355B high strength high toughness galvanized anti-corrosion steel structure building materials Load-bearing structural materials: The core is low-alloy high-strength structural steel, with typical ...Δείτε περισσότερων
Μηνύματα επισκέπτηΑφήστε ένα μήνυμα
Κανένα δημόσιο σχόλιο ακόμα
Q355B high strength high toughness galvanized anti-corrosion steel structure building materials