1. 316/316L stainless steel material;
2. Execution standards: ASTM A213, ASTM A269;
3. Outer diameter size: 1/8" to 2", 3mm to 50mm;
4. Internal surface electrolytic polishing, roughness: Ra0.25μm; External surface: Ra0.50μm;
5. Conventional supply lengths: 4m, 6m, and 20ft, customizable lengths according to customer needs.