... %Hardness<250HBProof stress >300mpaDuctile iron pipe fittings type:Flange Series: double flanged 11.25 22.5 45 90 bend, ... tees, flanged bell mouth, all flangedcross, double flanged taper, flanged spogot, blank flange, double flanged 90 long radius bend, doubleflanged ... above fittings Specification are from DN50 to DN2000 EXCEPT double flange pipe. Double flange pipe: length up to 2000MM, ONLY for DN50 ...