Stainless steel plate is a kind of hollow section with no seams around. The thicker the thickness of the product, the stainless steel plate is more economical and practical, the thinner the wall thickness, the stainless steel plate's processing costs will rise significantly. Stainless steel plate of its limited performance of the decision, the general low precision seamless steel pipe: Wall thickness is not uniform, stainless steel plate's surface brightness is low, stainless steel plate's cost of high-length, and the appearance of pitting, black spots are not easy to remove. Stainless steel plate detection and shaping must be off-line processing. So stainless steel plate in the high-pressure, high strength, mechanical structure of timber reflects stainless steel plate's superiority.