Electric-Welded Pipe D 530*7.0 Gost 10705-80 St20, Length 24 M, Metal Thickness 7.0 Mm, Tonnage 2,170 T Electric-Welded Pipe D 530*7.0 Gost 10705-80 St20, Length 24 M, Metal Thickness 7.0 Mm, Tonnage 2,170 T