apa tubing Astm a269?

kita minangka produsen pipa koil stainless steel astm a249, standar yaiku pipa koil ASTM A 249, tabung kasebut Standar yaiku ASTM A249.lumahing padhang, dawane 4000m / Coil, tabung coil alus, bisa digunakake kanggo lapangan lenga, pipa fitting, Peralatan