Range :15 nb up to 1200 nb in sch 5s , 10s ,10, 20 , 40s , 40 , std , 60 , 80s , 80 , xs , 100 , 120 , 140 , 160 & xxs
form :seamless erw welded in round & square .
Carbon steel : astm asme a 53 gr. A , b
astm asme 106 gr. A , b ,c .
Api 5l gr. B , api 5l x 42 , x 46 , x 52 , x 60 , x 70.
Astm asme a 691 gra , b ,c
alloy steel:
astm asme a 335 grp 1 , p 5 , p 9 , p 11 , p 12 , p 22 , p 23 , p 91
astm asme a 691 grp1 cr , 1 14 cr , 2 14 cr , 5 cr , 9cr , 91

Range :15 nb up to 1200 nb in sch 5s , 10s ,10, 20 , 40s , 40 , std , 60 , 80s , 80 , xs , 100 , 120 , 140 , 160 & xxs
form :seamless erw welded in round & square .
Carbon steel : astm asme a 53 gr. A , b
astm asme 106 gr. A , b ,c .
Api 5l gr. B , api 5l x 42 , x 46 , x 52 , x 60 , x 70.
Astm asme a 691 gra , b ,c
alloy steel:
astm asme a 335 grp 1 , p 5 , p 9 , p 11 , p 12 , p 22 , p 23 , p 91
astm asme a 691 grp1 cr , 1 14 cr , 2 14 cr , 5 cr , 9cr , 91