... sizes could be customized .We can do stainless steel pipe's deep-processing,such as Stamping,Punching holes,Welding,etc ... high production efficiency, good product consistency, pipe size precision, it can be compete with seamless pipe, the price is more favorable. 4) ... HH04)5)Surface treatment: Surface treatment: polished or bright annealing, soft hard cold hard can be produced, the tolerance is + ...