... , 300metric ton for pipe fittings.Order info: Product name, Standard, Grade,Size(OD/ID, WT(Pressure),Length for each piece),trade term ... the wall thicknes)Size:Seamless Fittings 1/2”-20” (DN15-DN500), Welded Fittings 1/2”-48” (DN15-DN1200)Standard:ASME B16.9 ...