Welded Steel Pipes in Unalloyed and Low Alloy Steels for Supply Purposes, Process Plant and Tanks; Pipes for General Use (Commercial Quality), Technical Conditions of Delivery— 2 стр.
Seamless Tubes in Unalloyed Steels for Supply Purposes, Process Plant and Tanks; Tubes with Quality Specifications, Technical Conditions of Delivery— 4 стр.