Yintoni ityhubhu ye-Astm a269?

Singumvelisi weetyhubhu zekhoyili ze-ASTM A249 zentsimbi engagqwaliyo, umgangatho yi-ASTM A249 Coil tube, ityhubhu isemgangathweni yi-ASTM A249. Umphezulu ukhanya, ubude yi-4000m/Coil, ityhubhu yekhoyili ithambile, ingasetyenziswa kwintsimi yeoyile, ukufakwa kwepayipi, izixhobo