
Material: Q355B, Q235B, etc.; usually painted, galvanized and other treatments to improve corrosion resistance and appearance weight.
Material: Q355B, Q235B, etc.; usually painted, galvanized and other treatments to improve corrosion resistance and appearance weight.
Material: Q355B, Q235B, etc.; usually painted, galvanized and other treatments to improve corrosion resistance and appearance weight.
Material: Q355B, Q235B, etc.; usually painted, galvanized and other treatments to improve corrosion resistance and appearance weight.
Material: Q355B, Q235B, etc.; usually painted, galvanized and other treatments to improve corrosion resistance and appearance weight.
Material: Q355B, Q235B, etc.; usually painted, galvanized and other treatments to improve corrosion resistance and appearance weight.
Material: Q355B, Q235B, etc.; usually painted, galvanized and other treatments to improve corrosion resistance and appearance weight.