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2020 03-19
衬四氟钢管

 衬四氟钢管制造工艺 先采用进口PTFE粉末,推(挤)压成管子,然后将它强行拉入无缝钢管(衬管外径略大于钢管内径1.5-2mm),形成无间隙紧衬。为了消除压力,将它放在炉中,加温至180C进行恒温处...


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