字典網>> 英漢字典>> W開頭詞條>>welding neck flange的意思 漢英字典welding neck flange中文翻譯：【化】 對焊法蘭; 高頸法蘭; 焊頸法蘭英文字典welding neck flange相關詞條：welding grade shield gas welding symbols welding burner welding material welding positioner welding pressure welding heat welding flame welding grade argon welding helmet