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CNS 849-1982 Ductile Cast Iron Special Castings for Pressure Main Lines Flanged Bends (FB)《压力管路用延性铸铁管件–90双凸缘弯管(FB)》.pdf
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CNS8491982DUCTILECASTIRONSPECIALCAS
压力
管路
延性
铸铁管
90
凸缘
弯管
FB
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