... , Size:1/2" to 24" DN15mm-DN2400mm astm a182 grade 304 flanges ASTM A105 steel flanges 1.Materials:Carbon steel ... 304L,316,316L,ASTM A216 2.Manufacture Standards:ANSI B16.5 CL300,CL600,CL900,CL1500, din2573,DIN2572,DIN2576,DIN2631,DIN2633 ... ,Blind,blank,Plate/Plain/Flat 4.Technical: Forged,casted, 5.Size: DN10mm to DN2400mm/1/2" to 24" 6 ... the best competitive price,thank you! astm a182 grade 304 flanges