The dryer shaft is welded with several sets of multi-layer non-concentric seamless tubes, each of which is comprised of multiple seamless tubes having different sizes bent in Archimede's spiral.
干燥机轴焊有多套,多层不同心无缝管,每套有多根大小不同弯成阿基米德螺旋线形无缝管组成。
The dryer shaft is welded with several sets of multi-layer non-concentric seamless tubes, each of which is comprised of multiple seamless tubes having different sizes bent in Archimede's spiral.
干燥机轴焊有多套,多层不同心无缝管,每套有多根大小不同弯成阿基米德螺旋线形无缝管组成。
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