Turi abakora inzobere hamwe n'abatanga imiyoboro y'ibyuma gakonja cyangwa imiyoboro yuzuye ijyanye no gufunga galvani. Flanze
Bisanzwe:ASTM A53, ASTM A106, EN10255, EN10219, EN10210, API 5L44, ASTM A345, ASTM44, ANSI C80.1, nka 1074
Amanota:A53, A106 GR.A, Gr.b, Gr.c.c.c.c.c.c