joist steel 中文意思是什麼
joist steel
解釋
工字鋼,梁鋼。-
Discussion on construction technology of light - gage steel joist gypsum - lath ceiling
淺談輕鋼龍骨紙面石膏板吊頂的施工技術 -
Trussed steel joist
桁式鋼質欄柵 -
Hot - rolled steel joist
熱軋鋼龍骨 -
Lightgage steel joist
輕鋼龍骨 -
Rolled steel joist
輾鋼工字梁
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