Producing process: high-quality low carbon steel chosen as raw material, pickling, cold-drawn, no oxidization heat treatment - bright heat treatment (NBK status), non-destructive testing, OD polished and inside flushing under high pressure, anti-rust oilling inside and outside surface, capping on both ends to prevent from dust.

  

Main Features: high precision, brightness and cleanliness; after heat treatment, the inner and outer wall without oxide layer; no seam after flaring and squashing, no deformation after cold bending; inner wall could withstand high pressure (Accessible Pressure Listed Table-1)

  

Main Application: Hydraulic system and automobile industry and other occasion which with high requirement of the precision, brightness, cleanness, and mechanical properties.

  

Tube Color: grey with white.

Our Tube Advantages:

1. No oxidized residual substances both inner hole & outside surface.

2. Mirror bright & cleaning surface. 

3. Can be bent at any angle.

4. When do high pressure work, cold bending, flaring, and tensile force, there is no cracks and breaks.

5. No blockage to pneumatic, hydraulic and oil routes.

6. Have good elongation rate and tensile strength.