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Astm a53b 20# Seamless Carbon Steel Pipe Standard:JIS, DIN, ASTM Grade Group:10#-45#, 16Mn, Q195-Q345, Cr-Mo alloy Thickness:3 - 30 inch Section Shape:Round Outer Diameter(Round):30 - 600 mm Place of Origin:China Application:Manufacture heating-pipelines, Technique:Hot Rolled Certification:ISO9001:2008 Surface Treatment:Black and Varishing, PE Special Pipe:Thick Wall Pipe Port:Tianjin port
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