The high-precision muti-roller machine currently used by our company is the advaned production equipment that producing stainlessthin-wall flotless industrial hydro-pipes. The internal diameter um, Ra0.7 of roughness, after being cold-rolled, internal diameter um, Ra0.4 behind the polishing, according to GMP pharmacopoeia request, can substitute the import products, used in petrochenmical industry, electricity, nuclear energy, chemical fertilizer, bioler, light textile, papermaking, food, dairy product, making wine, pharmacy bioengineering, ect. Besides, it has reached the following standards: GB, ISO, DIN, IDF, 3A, JIS.