rigel exports Surface finish and cleanliness are important for corrosion resistance, aesthetics, and functionality. Processes like pickling, passivation, or mechanical polishing ensure smooth surfaces and remove surface contaminants. Robust quality assurance practices involve rigorous testing throughout production. This includes non-destructive testing (NDT) such as ultrasonic testing (UT), radiographic testing (RT), magnetic particle testing (MT), and dye penetrant testing (PT) to detect defects and ensure structural integrity. .