... me scaffold管状焊接框架式脚手架 welded frog焊接辙叉 welded gasket焊接垫 ...
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... welded flat head烧焊式仄掀 welded frog烧焊辙叉 welded gasket烧焊垫 ...
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When a turnout is connected with CWR through welded joints, the longitudinal rail temperature force ACTS directly on the frog and the switch section along with the variation of rail temperature.
道岔与无缝线路焊接后，随着轨温的变化，长钢轨纵向温度力将直接作用于道岔的撤叉和转撤部分。
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