Jul 15, 2008
Steel Pipe
1. seamless pipe
Size: ?10mm-?630mm; Material: 10#-45#, Q345A/ B/ C/ D, 27SiMn, 40Cr, 40CrMn, 20CrMn, 30Mn
Executive standard: GB8162(structural pipe), GB8163(fluid pipe),GB3087-99(boiler pipe), GB5310-95(boiler pipe for high...