I-beams are mainly divided into ordinary I-beams, light I-beams and wide-flange I-beams. According to the height ratio of flange to web, it is divided into wide, medium and narrow wide flange I-beams. The first two are produced in sizes 10-60, that is, the corresponding heights are 10 cm-60 cm. At the same height, lightweight I-beams have narrow flanges, thin webs, and light weight. Wide-flange I-beam is also called H-beam. The cross-section feature is that the legs are parallel and there is no slope on the inside of the legs. It is an economical section steel and is rolled on a four-roll universal rolling mill, so it is also called "universal I-beam". Ordinary I-beams and light I-beams have formed national standards.

Angle steel can be composed of various stress components according to different needs of the structure, and can also be used as a connector between components. Widely used in various building structures and engineering structures, such as beams, bridges, transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container racks, cable trench supports, power piping, busbar support installation, and warehouses shelves etc.

The types and contents of chemical elements in 254SMO stainless steel have been precisely proportioned and optimized, giving it excellent corrosion resistance, high temperature strength and processing performance. Therefore, it has been widely used in petroleum, chemical industry, marine engineering and other fields.

444 stainless steel is highly recognized for its excellent corrosion resistance and heat resistance. This stainless steel has a wide range of applications and can show stable performance in a variety of extreme environments.

904L stainless steel is a stainless steel material with good corrosion resistance, strength and mechanical properties. Given its excellent tolerance to harsh environments, 904L stainless steel bars are commonly used as manufacturing parts in fields including petroleum, chemical industry, and marine engineering.

ASTM A537 pressure vessel steel plates are heat treated carbon manganese silicon steel plates used in pressure vessel fabrication. There are 3 grades, which are Grade 1, Grade 2, and Grade 3.

GB/T 11251 alloy steel is one of the common hot-rolled alloy structural steels. This steel coil is widely used in various applications in bearings/gears of rotating machinery.

DIN 1629 seamless steel pipe has three main grades of St37.0, St44.0, St52.0. Generally, the DIN 1629 standard is not limited to the working pressure value, and the working temperature is limited to below 300 ℃.

I-beams are mainly divided into ordinary I-beams, light I-beams and wide-flange I-beams. According to the height ratio of flange to web, it is divided into wide, medium and narrow wide flange I-beams. The first two are produced in sizes 10-60, that is, the corresponding heights are 10 cm-60 cm. At the same height, lightweight I-beams have narrow flanges, thin webs, and light weight. Wide-flange I-beam is also called H-beam. The cross-section feature is that the legs are parallel and there is no slope on the inside of the legs. It is an economical section steel and is rolled on a four-roll universal rolling mill, so it is also called "universal I-beam". Ordinary I-beams and light I-beams have formed national standards.