Stainless steel and Carbon steel Flanges :1/2''~24'',from class 150# to 2500#26''~60'',from class 150# to 1500#Stainless steel and Carbon steel Seamless BW Fittings:1/2''~60'',24'' and above is welded Stainless steel Seamless Pipes:1/8''~22'',Sch5S~XXSStainless steel Seamless Tubing: 6mm~356mm