rubber seal butterfly valve 1.Mechanic Sealing low friction moment 2.No scratching scars 3.Fast Delivery 4.Supply OEM/ODM rubber seal butterfly valve SizeDN40 - DN1400Design StandardAPI 609End flangeEN1092 ,ANSI 125/150# ,DIN2501Face to faceEN 558-1, BS5155 , ISO 5752Top flangeISO 5211 BodyDuctile iron,Stainless steel,WCBDiscDuctile iron,CF8,CF8M,C95400,C95500StemSS416,SS420,SS431,SS316SeatNBR, ...
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