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Material : high quality 304,316 stainless steel tubes etc. 

Structure:inner spiral flow channels ,jacketed type and other structure.

Processing:

1.Just finish grinding.2.finish grinding andpolishing.3.hard chrome plating,finish grinding and polishing.

(according to customer needs) 

Parameter:

Roughness:Ra0.05,finish14,Straightness<0.005mm,runout<0.002mm,coaxiality<0.002mm. 
Application: 

Used in all kinds of plastic film, paper, plate, metal, leather, cloth, textile, decorative materials,electronic , etc.