Feature

OST is "Carbon steel precision tube for hydraulic line service". Of the hydraulic piping, this tube mainly has been used in the piping of using flared type pipe fittings or bite type pipe couplings.

1. High quality and quick delivery
   We will be able to deliver tubes of high quality in a short delivery time.
2. Nondestructive test
   We will never overlook injurious defects by nondestructive test (eddy current inspection) for all materials.
3. Bright heat treatment
   Inner and Outer surface of the tube become scaleless because we use bright annealing furnace for final heat treatment.
4. Special wrapping on small amount
   On your request, we seal up products by plastic bags. This wrapping excels in stock and rust prevention when you use only a necessary small amount.