... manufactures and sells stainless steel decorative pipes(e.g. round pipe with range from diameter 6 mm to 219mm, square ... ,and rectangular pipe with range from 20x10 to 150x100 , with thickness from 0.25 to 3.0,), industrial stainless steel welded pipes ... do the whole processes, such as cold rolling, annealing, slitting, pipe making and so on, because of everything is under our ...