มาตรฐาน
API, 5CT API, 5L API, A106-2006 ASTM, A333-2005 ASTM, A53M-2007 ASTM, B36.19M-2004 Asme, A335M-2006 ASTM, ดิน10025 En
เกรด
10 #-45 #, 10 #, #20, 45 #, A53-A369, A106(B,C), A333, A335 P11, A335 P5, A335 P9, A335 P1, A335 P23, P110 J55-API API, J55 API, K55 API, N80 API, P110 API, ST35-ST52, ST52