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Material for main parts
Parts name Material
Body Ductile cast iron,cast steel,Alloy steel, stainless steel
Disc Grey cast iron,ductile cast steel,cast steel,stainless steel and hoc material
Seal ring Manifold rubber,such as EPDM, PTFE,NBR,Viton,CR
Stem 2Cr13,steel,stainless steel
Packing O-ring,flexible graphite