1、Classification of profiles

① Square steel – hot-rolled square steel, cold drawn square steel.

② Round steel – hot-rolled round steel, forged round steel, cold-drawn round steel.

③Wire rod.

④Flat steel.

⑤ spring flat steel.

⑥Angles – equilateral angles, unequal angles.

⑦ Triangular steel.

⑧Hexagonal steel.

⑨ bow-shaped steel.

⑩Oval steel.

2、Complex section steel

① I-beam – ordinary I-beam, light I-beam

② channel – hot-rolled channel (ordinary channel, light channel), bending channel 

③ H-beam (also known as wide leg I-beam)

④ rail – heavy rail, light rail, crane rail, other special rails

⑤ Window frame steel

⑥Steel sheet piles

⑦Bending section steel – cold-formed steel, hot-formed steel

⑧Other