1. Beautiful and novel shape, rich color, strong decoration, flexible combination, can express different architectural styles;
2. light weight (6~10kg/m²) high strength (yield strength 250~550MPa), with good skin stiffness, waterproof agent good seismic performance;
3. convenient construction and installation, reduce installation and transportation workload, shorten the construction period;
4. profited steel plate is environmentally friendly building materials, recyclable, the promotion and application of profited steel plate in line with the policy of sustainable development of national economy.

Due to its high-standard corrosion-resistant and water-proof characteristics. Colored corrugated sheets are widely used in the modern construction industry and residential areas. For the construction industry, corrugated steel roofing sheet is popular in building factories, warehouses, departments, stores, barns, stables, cattle sheds, etc. Colored corrugated roofing also has an excellent performance in most residential construction projects, such as houses, makeshift houses, garages, storage rooms, log cabins, sheds, etc. All contribute to its low installation cost and good performance to corrosion resistance, the pre-painted corrugated roofing sheet appears on more and more public buildings nowadays including cinemas, exhibition halls, gyms, schools, and hospitals.

Hot rolled steel sheets are available in a wide range of grades, each with its own unique characteristics. Choosing the correct grade is therefore essential to produce a high quality end product in the most economical way.
Lai can help customers to select the right grade for each application. We are also prepared to work with our customers by providing the best technical and production support.

Plating Finish
The hot rolled sheet (pickled) is coated with ol to prevent rusting. Lubricants used in the forming process may also remain on the surface. All such impurities and traces of impurities present on the surface must be removed prior to starting the planing operation.

Rust protection
In order to provide maximum protection against rust and at the same time promote degreasing, hot rolled sheets are treated lightly and evenly with a low viscosity oil that is easy to remove but still provides excellent protection against rust, as the sheets are or are lightly oiled, they may rust if exposed for a long time after lay-up.

Welding
The manufacture of a satisfactory end product depends to a large extent on the selection of a suitable welding method and the skills of the welder. The appropriate method should be determined according to the desired appearance and strength of the final product as well as economic considerations.

Shipbuilding
The product is characterised by high strength, low temperature toughness and high heat input welding to meet customer requirements such as complexity and diversity of quality in the lighter weight trend of ships in recent years. Mostly used for bulkheads, upper decks and hatch covers of tankers, bulk carriers, container ships and LNG carriers.

Pressure vessels
Due to the frequent use in high-pressure environments, the product has excellent heat and corrosion resistance. Mostly used in gas storage tanks, crude oil storage vessels, boilers, heat exchangers, power generation equipment, etc.

General / welded construction
The use of this product has expanded as structures have become larger and larger. It is mainly used in bridges, industrial machinery, buildings and marine structures.

Pipelines
As a steel with high strength and excellent low-temperature toughness or weldability, it is used for the production of pipelines such as steel pipes for high-volume transportation of crude oil and natural gas, oil casing and marine structural steel pipes.

The main industries that consume cold-rolled steel sheets include construction, machine building, automotive, white goods and consumer goods.

In the construction sector, cold-rolled sheets are primarily used to produce steel structures, bent closed and open profiles, facade elements, doors, etc.

In transport machine building and manufacture of white goods, cold-rolled sheets are predominantly used to manufacture bodies and load-bearing elements of cars and vehicles. Cold-rolled sheets should have good formability and a surface suitable for the application of various coating materials.

These steel are also used to manufacture tableware, packing materials and houseware for various applications. Large consumers of coldrolled sheets include service metal centres, which render their services to different sectors, from construction to instrumentation engineering. Using high-precision automated equipment, these companies cut, bend, machine and drill goods and parts made from cold-rolled steel sheets.