Wall thickness: STD, XS, XXS or> = XXS.
"ETS" is a code for the number of standard thickness, "XS" is a code for the series of considerable thickness, XXS is a code for a series of extraordinary thickness thick.
rade: 304,304 L, L 321 316 316, 310S.
4.High and low temperature
7.Oil and gas service
Cotice: tubo de acero inoxidable sin soldadura High and low temperature