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CN104455491A
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Two-way pressure butterfly valve with circular sealing faces
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CN104455490A
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Two-way pressure butterfly valve with elliptic seal surfaces
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CN104048058A
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Two-way pressure butterfly valve with elliptical sealing surface
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CN104048053A
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Four-eccentric two-way pressure butterfly valve with elliptical sealing surface
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CN104048054A
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Four-eccentric two-way pressure butterfly valve with perfect circle sealing surface
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Perfect circle sealing surface two-way pressure butterfly valve
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Novel four-eccentric oval sealing face bidirectional pressure butterfly valve
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Novel oval sealing face bidirectional pressure butterfly valve
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CN103335119A
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Double direction pressure metal finger stock butterfly valve
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CN104179994A
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All-metal bidirectional high-pressure butterfly valve
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CN103836207A
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Bidirectional butterfly valve convenient to maintain
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CN103836053A
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Anti-looseness fixing device for connecting butterfly board and valve seat of butterfly valve
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CN103836210A
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Butterfly valve seat
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CN102996828A
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Fast-maintained pipeline valve
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CN102996893A
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Manual valve actuator
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CN103016829A
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Fast-maintenance pipeline valve
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CN103775665A
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Single-plate two-way pressure inlet seal plate gate valve
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Replacement type two-way pressure butterfly valve of pipeline
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