brass tubing Same as per clients' different need in required standard,alloy,size,temper etc. All tubing with bright and clean Same as per customer's requirements,superior quality: stable chemical composition, very good mechanical properties,precise dimensions,clean and bright surface. According to ASTM B135&B251 standard,in Alloy C27200,C27000,C26000,C24000,C23000 etc. seamless brass tubing