字典網>> 英漢字典>> W開頭詞條>>weld metal composition的意思 漢英字典weld metal composition中文翻譯：【化】 焊接金屬組成weld metal composition 字典網相關詞條：weld-shrunk cylinder welding neck flange weldless connection welded on head weld flux welding jig welding electrode hold weld metal cracking weld joint welding rules