standard : ASME,ASTM,ANSI,DIN,JIS,API,MSS,AWWA size : 1/2" ~ 80" material : Carbon Steel,Stainless Steel.Alloy steel 1. Standard : ASME,ASTM,ANSI,DIN,JIS,API,MSS,AWWA2. Size : 1/2" ~ 80" (Special Design Available)3. Material : Carbon Steel A105(N),Stainless Steel 304(L),316(L).321,F11,F21 Alloy SB564 etc4. Type : Welding Neck,Slip-On,Bind,Long Welding Neck, Orifice, Tube sheet Forged Neck, ...