Cold Rolled Bright Annealing Steel Pipe our company offers inexpensive and high-quality cold rolled steel pipe and fittings Cold Rolled Bright Annealing Steel PipeStandard: BS 1387, BS 1139, BS EN10025, BS EN 39,etc Grade: 10#-45#, 16Mn, A53-A369, ST35-ST52, Q195,etc Grade: 20#, 16Mn, A53(A,B), St37, St52, St42,etcPlace of Origin: Tianjin China (Mainland) Secondary Or Not: Non-secondary Technique ...