精密钢管是一种通过冷轧处理后的一种高精密内外光亮的无缝钢管材料。由于精密钢管内外壁无氧化层、承受高压无泄漏、高精度、高光洁度、冷弯不变形、扩口、压扁无裂缝等都可以做到，所以主要用来生产气动或液压元件的产品，如气缸或油缸，可以是无缝管。
Precision steel tube is a kind of seamless steel tube material with high precision and bright inside and outside after cold rolling treatment. As the precision steel pipe has no oxide layer on the inner and outer walls, no leakage under high pressure, high precision, high finish, no deformation in cold bending, no crack in flaring, flattening, etc., it can be used to produce products of pneumatic or hydraulic components, such as cylinders or oil cylinders, which can be seamless pipes.