Steel structure frame building with high-strength bolt connection for large-span warehouse Q355B Steel structure warehouses are storage buildings with steel (such as H-shaped steel, steel purlins, etc...お問い合わせ
訪問者のメッセージメッセージを残しなさい
まだ公のコメントはない
Steel structure frame building with high-strength bolt connection for large-span warehouse Q355B