1.Injurious flaws of mother tubes are removed prior to cold drawing process.So that shortening the time of grinding process contributes to the cost saving.

2.Lengthy tubes are available.

3.Decrease the material loss due to less grinding substances.

4.Heavy adjustment is possible by cold drawing process and material costs become lower as you need not to use high tensile steels.

5.Seamless or electric resistance welded tubes are available.