短語詞組短語medium section angle steel 中型角鋼H -section steel 工字鋼;h型鋼Channel -Section Steel 槽形鋼hollow section steel fence 空心鋼欄cold curving section steel 冷彎型鋼section of shaped steel 異形鋼材Chyournel -Section Steel 槽形對建造鑄鋼鋼H section steel H 型鋼Double Period Section Steel 複郃周期斷麪鋼材 返回 section steel