DS (3 / 6 / 9) 73h wafer type ...

The wafer type two-way hard seal butterf...

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DS (3 / 6 / 9) 43h flange type...

The two-way hard seal butterfly valve is...

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D (3 / 6 / 9) 63h butt welded ...

Welded butterfly valve is a new type of ...

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D (3 / 6 / 9) 43h American sta...

The three eccentric hard seal butterfly ...

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DS (3 / 6 / 9) 43h flange trip...

Triple eccentric hard seal butterfly val...

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DS (3 / 6 / 9) 402 (Y / P) met...

Butt welded two-way hard seal butterfly ...

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DS (3 / 6 / 9) 402 (Y / P) met...

Metal to metal two-way hard seal butterf...

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