ASTM A53A,B 10# 20# the general structure pipe
Used in general structure, engineering scaffolds, mechanical treatment.
10 #, 20 # and other low-carbon steel seamless pipe for fluid pipes. 45,40 Cr and in carbon steel seamless pipe used for the manufacture of mechanical parts, such as automobiles, tractors force components. General seamless steel pipe to ensure the strength and flattening test. Hot-rolled steel, hot-rolled state or heat treatment delivery; cold rolling to heat treatment delivery.
ASTM A53A,B 10# 20# the general structure pipe
