Besides,the technology of two-sides molding by welding one side which is cored with non-clearance assembl...

 
  • 試驗證實(shí),這是一種與長(cháng)輸管道自動(dòng)焊配套的經(jīng)濟實(shí)用型成套設備,具有較好的推廣應用前景。
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