According to the needs of different diameter and intensity, two different materials of alloy steel are used: high -intensity alloy steel and super -strong alloy steel.
High -intensity alloy steel: Greet uses AISI standard high -quality alloy steel to achieve higher strength after heat treatment.
Super alloy steel: When the rig output power is greater and the diameter of the drill rod requires a thicker diameter, Grete’s selected performance is a superb alloy steel as the material. After heat treatment, the intensity that other alloy steels cannot reach.