Hot rolled Hexagonal Bars 

Hot rolled Hexagonal Bars  GOST 2879-88

14, 17, 19, 21, 22, 24, 25,
27, 28, 36, 41, 43, 46, 47, 52

St0, St1, St2,
  St3, St4, St5, St6

GOST 380-94

GOST 535-88
categories 1-5, group I-III;

GOST 1050-88,
   group of quality
surface 2GP, 3GP;

GOST 4543-71,
group of quality
surface 2-3