Steel pipe 40mm diameter:

Steel pipe 40mm diameter is a kind of through the production of cold drawn or cold rolled seamless steel tube with high precision, high brightness.Inside diameter size can be accurate to within 0.2 mm, in ensuring the bending and torsional strength phase at the same time, the weight is lighter, so widely used in the manufacture of precision machinery parts and engineering structures.Also used for the production of various kinds of conventional weapons, barrel, shells, bearing, etc.