Features:

1. Uniform coating, high bonding strength and accurate dimensional accuracy;

2. The surface hardness of the inner hole is up to HV100900-1160, the friction coefficient is small, the wear resistance is good, and it can be used for sand and other friction.

Medium in the oil well;

3. It has good chemical stability and does not work in alkali, sulfide, nitric acid and most organic acids.

Excellent anti-corrosion and corrosion resistance.

Performance parameters:

Φ28×(1.2~10.5)m

Φ32×(1.2~10.5)m

Φ38×(1.2~10.5)m

Φ44×(1.2~10.5)m

Φ57×(1.2~10.5)m

Φ70×(1.2~10.5)m

Φ83×(1.2~10.5)m

Φ95×(1.2~10.5)m

Φ120×(1.2~10.5)m

Φ140×(1.2~10.5)m

Φ160×(1.2~10.5)m