... 于计算等效标准轴载 ESALS 标准心轴 standard mandrel 标准出轴卧式电机 BTW ; BSW ...
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Seamless steel Pipe produced with retained mandrel continuous technology and equipment having the advanced world standard has made the quality of products reliably guaranteed.
用具有世界先进水平的限动芯棒连轧工艺和装备生产无缝钢管。
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