Mandrel Bar

We are offering mandrel bar. Our company is capable of producing a series of mandrel bars,such as mpm,pqf,fqm,with the diameter dn80mm to dn500mm,the length of 2500mm to 18000mm as a result of making the best use of our advantage in steel making,forging,heat treatment,machining plating--chromiun adequately.the raw steel material is aisi h13 and 4crmosiv1,based on enterprise specifications. 02.usage: mandrel is one of the key instruments to manufacture seamless steel tubes.