Standards:GB,ASTM/ASME/JIS A312,A249,A269,A213,etc. Materials:TP304,TP304L,TP310S,TP316,TP316L,TP316Ti,TP321,TP347,TP202,etc. If you are satisfied with our products ,please send the e-mail to me .Our company can offer any other products as your requirments Welcome you to vist our company!