Seamless steel tubes for mechanical engineering and normal structure

Seamless steel tubes for manufacture pipelines, pipe fittings, equipments and mechanical structures

Seamless steel tube for structure

GB/T 8162-2008 10# steel, 20# steel, 35# steel, 45# steel, Q345, Q460, etc

Seamless carbon steel and alloy steel mechanical tube

ASTM A519-2006 1018, 1026, 8620, etc

Hot-rolled non-alloy structural steel and fine-grained structural steel for hollow section

BS EN 10210-1-2006 S235GRH, S275JOH, S275J2H, etc

Seamless, welded and hot-dip galvanized steel tubes

ASTM A53/A53M-2012 GR. A, GR.B