... 316,316L,317L,310S,321,347,S30813 Seamless Stainless Steel Tubes :Standard: ASTM A213,A269,A511,A312,A270 ... .2mm up to 4 mmTough tolerance in Dimension for customers critical needsFinish Condition: Bright Annealed, Polishing, ... Treatment, Pneumatic Cylinders,Automotive & Heating, Textile spinning flyers, Electronical components, Medical instruments. Seamless Stainless Steel Tubes ASTM A213; A269; A3122