... 焊接板式法兰 welding plate flange 平焊环 welding-on collar 突缘短节 stub end, lap ...
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WELDING-ON COLLAR LOOSE PLATE FLANGE 平焊环松套法兰
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If the set collar end hardness is lower than HRC40, should first on the end surface again a built-up welding hard alloy, after the polish repackaging.
如果固定环端面硬度低于HRC40，则应先在端面上重新堆焊一层硬质合金，经磨光后再装配。
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