Weld joint cutting system for valve seat ring of highly put valve and cutting device thereof
The invention relates to a weld joint cutting system for a valve seat ring of a highly put valve and a cutting device thereof. The highly put valve comprises a valve body, a valve seat ring and a weldjoint, wherein the valve body comprises at least two transverse pipes and a vertical pipe located be...
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Format: | Patent |
Sprache: | chi ; eng |
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