(1) carbon structural steel (carbon structural steels);
(2) low alloy high strength structural steel (high strength low alloy structural steels);
(3) High-quality carbon structural steels (quality carbon structural steels);
(4) alloy structure steel (alloy structure steels);
(5) spring steel (spring steel);
(6) Bearing steel (bearing steel);
(7) carbon tool steel (carbon tool steels);
(8) alloy tool steel (alloy tool steels);
(9) high speed tool steel (high speed tool steels);
(10) stainless steel (stainless steel);
(11) heat-resistant steel (heat-resisting steels);
(12) Cold sensitive steel and cold extruded steel (cold heading and cold extruding steels);
(13) Free-cutting steel (free-cutting steel);
(14) Atmospheric corrosion resisting steel (atmospheric corrosion resisting steel);
(15) electrode steel and alloy (electrod steel and alloy);
(16) Corrosion resisting alloys (corrosion resisting alloys);
(17) precision alloys (precisions alloys);
(18) high temperature alloy (alloys for high temperature use);
(19) Electrical steel (steel for electrical use), including grain-oriented and non-oriented silicon steels (grain-oriented and non-oriented silicon steels) and electromagnetic
pure iron (magnetic iron);
(20) special steel (steel for special use),
Including hull structure steel (hull structure steel),
Steel plates for boilers,
Steel plates for pressure vessels,
steel plates for welded gas cylinders,
Steels for automobiles,
Hot-rolled wide strips for line pipe of oil and natural gas,
Steel for plastic mold
And railway steel (steel products for railways use), etc.