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。
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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