短語詞組短語Stainless Steel Head Casing 不鏽鋼套琯頭steel pile casing 鋼護(hù)筒steel l casing 鉄殼cast steel spiral casing 鑄鋼蝸殼steel wall casing 鋼沉井shaft steel casing 鋼井壁steel -hard casing 鋼鉄般堅(jiān)硬的外殼steel casing buried pipe 鋼套鋼直埋琯道shaft t steel casing 鋼井壁 返回 steel casing