GOST 12821-80 Stainless Steel flange SS304

　　GOST 12821-80

　　size:DN10-DN1600

　　type:welding neck

　　GOST 12821-81

　　:Standard:GOST 12821-80

　　size:DN10-DN1600

　　pressure:PN 6,PN 10,PN 16,PN 25, PN 40,PN 63

　　materail:CS Ct20,16Mn,SS 304/304L,316/316L

　　coating:rust-proof oil

　　we always think the quality is the soul of an enterprise, so we put the quality as the first consideration.With a new stance, we hope to tighten our relationships from both abroad and domestics on the purpose of mutual benifit and development for our prosperous future.,If you are interested in our products, please contact me when you free.Warmly welcome customers to us for relationship and business negotation.