1.body: cast iron/ductile iron 2.size:DN50-DN400 3.Nominal pressure:PN10-PN16 4 best price Standard materials of main parts1. body/bonnet:ductile iron/cast iron2.disc:ductile iron/cast iron3.shaft/pin: stainless steel4.body ring: brass/bronze5.disc ring : brass/bronzeDesign standard:BS5153Face to face:BS5153End flange:BS4504/EN1092Test:BS5153
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