Seamless Steel Pipe 1.OD:4" to 24" 2.W.T.:SCH20,30, ... the ANSI standard,DIN 2527,2573,2576,2642,2633,as well as the JIS B2220,BS4505 standards cross : carbon steel such ... smelting, foodstuff, papermaking, chemical equipment, heat exchanger and other fieledsseamless pipe Stainless Steel Pipe Fitting