Russian customer inpsect castings for oil well

On 4th of October,our Russian customer started to inspect the castings for blowout preventer.

The material is ZG25CrNiMo with 75K standard.

The castings are in rough machining with quenched.

We supply ZG25CrNiMo or ZG30CrMo castings for petroleum machinery for a long time.

Every year,we produce around 8000 tons castings for our customers.