Steel ikiaka 45 ogo na 90 Ọkwa, nha SITE 1 1/2 na 8 na, ọkpụrụkpụ SCH 40, SCH STD, SCH 80, lbs 6000, IHE ASTM A234-WPB; Concentric Mbelata SCH 20 X SCH 40, n'obosara SITE 2 na 8 na, IHE STANDARD NA akara ule ASTM A234-WPB, ígwè tees dị iche iche nha, na okpu nipples.
