ST12 is German standard (DIN1623), It's ordinary cold rolled steel. In principle, ST12 can only be bent and formed, and no stamping is allowed.

Seamless pipe, as the name suggests, is a pipe without a seam or a weld-joint. Seamless Steel Pipe is made from a solid round steel ‘billet’ which is heated and pushed or pulled over a form until the steel is shaped into a hollow pipe.

Characteristics：Weather proof; heating insulation; fireproof; anti-rust; sound insulation; long life span: more than 20 years. Corrosion Resistance: the aluzinc coating surface protects the base steel not only by providing barrier to corrosion elements, but also by the sacrificial nature of the coating.

1. Width: 600-1000 mm 2. Thickness: 0.135-2.0 mm 3. Hardness: T2, T2.5, T3, T4, T5, T6, T7, DR8, DR9 4. Standard: AISI, ASTM, BS, DIN, GB, JIS 5. Grade: SGCC, SGCH, SGCE, SPCG, DX51D, 6. Technique: cold rolled 7. Coil weight: about 5--12 tons 8. Coil diameter: 508-1500 mm or as per customer's request

H-beam is a kind of Economic section steel, which  sectional area distribution is more optimized, the  ratio of  strength to weight is more reasonable, Mechanical properties of section is more better.It is developed from the I-section steel optimization of a better section mechanical properties of the economic section steel, because its section is same as  the English letter "H" ,so be named as H-Beam. Because the various  part of H-beam is arranged at right angles, H-beam has the advantages of strong bending resistance, simple construction, cost saving and light structural weight in all directions, so it has been widely used.

Round steel belongs to carbon structural steel for construction and machinery, while square steel belongs to carbon structural steel for machinery. Both of them are simple section steel, and their section shapes are respectively round and square. Low carbon is mainly used for drawing wire, forging rivets, bolts, nuts and other metal products of raw materials. Medium carbon round steel and square steel are generally used to make mechanical structural parts.

Performance and application of material ST37: the material has good performance, that is, through cold rolling, it can obtain cold rolled strip and steel plate with thinner thickness and higher precision, with high straightness, high surface finish, clean and bright surface of cold rolled plate in Taiwan Strait, easy to be coated, various varieties, wide application, high stamping performance, non aging, and low yield point.

PPGI is galvanized color plate, PPGL is galvanized color plate, both are color plates, the substrates are different, one is galvanized structure, the other is galvanized structure, the substrate is different, which determines the difference in performance. DC01 Galvanized steel coil is used for automobiles, sanitary ware, food machinery, pressure vessels, nuclear power, chemical equipment, elevators, rail transit, machinery manufacturing, structural piping, and architectural decoration.