... pipe with range from diameter 6 mm to 219mm, square pipe with range from 10x10 to 100x100,and rectangular pipe with range from 20x10 to 150x100 , with ... whole processes, such as cold rolling, annealing, slitting, pipe making and so on, because of everything is under our ... control, So you are assured to get the qualified goods with competitive price),A, Good-looking in appearanceB, Corrosive-resistingC, ...