Lis pri
-                API 5L/ASTM A53 GR.B, ERW Kabòn Steel tiyoLi plis
-                API 5L/ASTM A106 GR.B, Seamless Carbon Steel TiyoLi plis
-                API 5L/ASTM A53 GR.B, SSAW Kabòn Steel TiyoLi plis
-                API 5L GR.B/ASTM A53 GR.B, LSAW Kabòn Steel TiyoLi plis
-                API 5L/ASTM A53 GR.B, ERW Kabòn Steel tiyoLi plis
-                API 5L/ASTM A106 GR.B, Seamless Carbon Steel TiyoLi plis
 
                 




