What is stainless steel desulfurization and degreasing

It is a process. Stainless steel pipes need to be degreased before cleaning and passivation treatment. The purpose of the degreasing treatment is to remove the oil and grease left on the inner wall of the pipe due to processing, degreasing is a process. Degreasing means removing the fatty substance in certain substances. Such as cotton, dairy, etc., often applied after degreasing.