For Steel products: (1. ) Seamless Steel Honed Tubes/Internal Honed with External Hard Chromium Plate Tube/Internal Honed & Hard Chromium Plate Tube JIS STKM 13C (2. ) High-Carbon Anti-Friction Bearing Steel Bar/Hollow Bar SUJ-2 (3. ) Induction Hardening Chromium Plate Bar SAE 1045/JIS S45C/DIN CK45 For Aluminum products: (1. ) Aluminum Alloy Tubes for Pneumatic Cylinder A6063 T5 (2. ) Aluminum Alloy Profile Tubes for Pneumatic Cylinder A6063 T5 For Stainless Steel products: (1. ) Stainless Steel Chrome Plate Rods/Grind Rods type SUS 303/304/316 (2. ) Stainless Seamless Steel Honed Tubes/Extra-Thin Seamless Steel Tube SUS 304/304L/316/316L (3. ) Stainless Seamless/Welded Industrial Steel Pipes ASTM A312 (4. ) Stainless Seamless/Welded Steel Sanitary Tubing ASTM A270