Astm B 428 – 93 (Reapproved 2004) Pdf free download May 10, 2022November 12, 2020 by Mike Standard Test Method for Angle of Twist in Rectangular and Square Copper and Copper Alloy Tube1 This standard is issued…Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here