短語(yǔ)詞組短語(yǔ)bulb bar steel 圓邊圓鉄bulb rail steel 球頭丁字鋼bulb tees steel 圓邊丁字鉄hot rolled bulb flat steel 熱軋球扁鋼bulb rail steel T -bulb steel 球頭丁字鋼T -bulb steel 球頭丁字鋼Bulb -Rail Steel 球頭丁字鋼;球頭丁字鋼梁Flat -Bulb Steel 球扁鋼;球緣扁鋼Flat Bulb Steel 球扁鋼;扁鋼 返回 bulb steel