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Butterfly Valve Characteristic:
Valve body | Cast iron, cast steel, stainless steel, chromium molybdenum steel, alloy steel |
Butterfly board | Cast steel, alloy steel (hard chromium plating), stainless steel, chromium molybdenum steel |
Seat seal | Stainless steel, multi-layer, polyurethane, anti-wear material |
Stem | 2Crl3, 1Crl3 stainless steel, chromium molybdenum steel 2Crl3, 1Crl3 |
filler | Flexible graphite |