yini ishubhu ye-Astm a269?

singabakhiqizi beshubhu yekhoyili yensimbi engagqwali i-astm a249, indinganiso yi-ASTM A 249 Coil tubing, ishubhu liyi-ASTM A249. ubuso bukhanyayo, ubude buyi-4000m/Ikhoyili, ishubhu lekhoyili lithambile, lingasetshenziselwa indawo kawoyela, ukufaka amapayipi, Izisetshenziswa