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Catalogue

Product Technology

Cold-drawing

Process

01Heat treatment

The process to remove the product impurities and relieve the stress.

02Swaging

The process that reduces the diameter of the front side so that the material can be inserted to the drawing mold.

03Surface treatment

The process of removing scale, coating a film to prevent oxidation, and treating drawing oil or bonderlubeon a material.

04Cold-drawing

The process of pulling the steel tube out of the plug and the dies for producing precise size tubes.

05Straightening

The process of forming the roundness and straightness of the tube while passing through the straightening rolls.

06Cutting

The process of cutting the pipe according to the customer’s specifications.

07Eddy current test

The process of inspecting welding parts and surfaces through eddy current tester.