... -67,GOST12821-80,GOST12821-80 TypeWelding Neck Flanges, Slip on Flanges, Threaded Flanges, Socket Welding Flanges, Blind Flanges, ... /L)Delievery Time7-15days after the order confirmedProductivity7000 PCS/DAYMin Order50 PCSOthers We are the leading professional manufacturer of Carbon ... Europe,South America, Africa and so on. High quality and competitive prices are our advantages. And we can desigh ...