Seamless TP304/L 1/4" TO 16" TP316/L 1/4" TO 16" TP321/H 1/4" TO 16" TP304H 1/4" TO 16" TP347/H 1/4" TO 16" TP310S/H 1/4" TO 16" TP309S/H 1/4" TO 16" TP317/L 1/4" TO 16" SCHEDULE 10S/40S/80S/160/XXS Welded TP304/L 1/2" TO 52" TP316/L 1/2" TO 52" TP347/H 1/2" TO 52" TP410 1/2" TO 52" TP 321 /H 1/2" TO 52â?? SCHEDULE 10S/40S/80S/XS