Welded Steel Pipes in Unalloyed and Low Alloy Steels for Supply Purposes, Process Plant and Tanks; Specially Tested Pipes with Quality Specifications, Technical Conditions of Delivery— 5 стр.
Seamless Tubes in Unalloyed Steels for Supply Purposes, Process Plant and Tanks; Tubes with Special Quality Specifications, Technical Conditions of Delivery— 4 стр.