SPCC steel is produced by subjecting hot rolled steel to a cold rolling process. This involves passing the steel through the warehouse under queues, which not only improves its surface finish but also enhances its mechanical properties.

API Spec 5L is an international standard that specifies the manufacturing requirements for two product specification grades (PSL 1 and PSL 2) of seamless and welded steel pipes used in pipeline transportation systems in the oil and gas industry.

DC01, DC02, DC03, DC04 are steel grades of European standard DIN EN 10130, 10209 and DIN 1623, which are specified cold rolled steel. The grades are classified according to the maximum permissible yield strength.

A36 is a carbon structural steel plate whose chemical composition and mechanical properties comply with American ASTM standards. This kind of steel plate has good mechanical properties, welding performance and corrosion resistance, and is widely used in construction, bridges, machinery manufacturing and other fields.