Brass Seamless Tubes 1. Feasures: 1) precise size 2) bright, smooth on both ends 3) clean and straight 2. Specification: O.D: 2mm to 70mm, Wall thickness: 0.1mm to 70mm. 3. Standard: ASTM B135, EN, GB, JIS etc. 4. Material: C27200, C27000, C26000, C24000, alloy Cu/Zn 63/37, Cu/Zn 65/35, Cu/Zn70/30, Cu/Zn 80/20 5. Price: competitve, based on the LME.