Zvakajairwa kuti mapaipi akaiswa kabhoni simbi ive nemhepo mabubbles muweld, kunyanya hombe-diameter carbon seamless steel pipe weld pores haingokanganisa kusimba kwepombi weld uye kukonzera kubuda kwepombi, asi zvakare inove iyo induction point yekuora, iyo zvinoderedza zvakanyanya ...
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