桁架结构装卸桥 latticed structure loader-unloader
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本发明涉及一种钢管相贯线切割机钢管支承架结构，特征是：支承轮安 装于支承板上；
The invention relates to a steel tube supporting frame structure of a steel tube intersection line cutting machine, which is characterized in that: a support roller is mounted on a support plate;
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