
Product Introduction of Purlin Series
We are proud to present our high - quality purlin series, which are essential components for various construction projects. Our purlins come in multiple types and specifications to meet diverse needs.
Types and Specifications
Profile Types
We offer C - type, Z - type, Ji - type purlins, and non - zinc spray - molded purlins. These different profiles can be selected according to the specific requirements of your construction projects, whether it is for large - scale industrial buildings or other structures.
Material Options
Our purlins are available in the following materials: Q235B/C, Q355B/C, Q390B/C, and Q420B. You can choose the most suitable material based on factors such as load - bearing requirements and environmental conditions of your project.
Thickness Range
The optional thickness of our purlins ranges from 1.5mm to 4.5mm. This allows for flexibility in design, as you can select the appropriate thickness based on the structural demands of your construction.
Height Coverage
The height coverage of our purlins spans from 100mm to 450mm. This wide range ensures that our purlins can be applied in different construction scenarios, from low - rise to some medium - rise structures.
Zinc Coating/Coating Options
We provide various surface treatment options: galvanized with a zinc layer of 40 - 350g, oil paint spray molding, and non - zinc oil paint spray molding. These treatments not only enhance the appearance but also improve the corrosion resistance of the purlins, extending their service life.
Cooperative Manufacturers
We cooperate with well - known manufacturers such as Jianlong, Gangsteel, and Baosteel (for special customized products). This ensures the high quality and reliability of our purlins.
The following is a tabular summary of the key parameters:
Parameter |
Details |
Profile Types |
C - type, Z - type, Ji - type, Non - zinc spray - molded |
Optional Materials |
Q235B/C, Q355B/C, Q390B/C, Q420B |
Optional Thickness(mm) |
1.5 - 4.5 |
Height Coverage (mm) |
100 - 450 |
Zinc Coating/Coating |
Galvanized 40 - 350g, Oil paint spray molding, Non - zinc oil paint spray molding |
Cooperative Manufacturers |
Jianlong, Gangsteel, Baosteel (special customized products), etc. |
Our purlin series, with its diverse types and excellent parameters, can provide reliable support for your construction projects. Whether you are engaged in industrial building construction or other related fields, our purlins are worthy of your trust.


Honglu company focuses on steel structure manufacturing, with a total of more than 20,000 registered front-line technicians, ranking second among the Top 100 comprehensive private manufacturing enterprises in Anhui Province in 2023; It ranks18th among the Top 100 private enterprises in Anhui Province in terms of revenue; Our company's building steel structure products have been recognized as a Single Champion in manufacturing industry.
Honglu company is one of the first batch of national prefabricated housing bases in China, and Honglu has participated in the compilation of China's first prefabricated steel structure housing standard.
The steel structure industry to which we belong is a green and low-carbon industry actively encouraged by the state, and is the backbone of the reform of the construction industry. The company will continue to improve the R&D, procurement, manufacturing of all aspects of informatization,
intelligent construction, and strive to become China's largest high-quality steel structure manufacturing R & D base with the leading technology, the best quality, the most satisfied customer.
In 2023, the output of steel structure products is about 4.488 million tons, and the output of steel structure products in 2024 is about 4.488 million tons.
Hefei Shuangfeng |
factory area 600,000 sq.m. |
Hefei Xiatang |
factory area 350,000 sq.m.
Galvanizing plant with an annual output of 350,000 tons (28,800 sq.m.) |
Xuancheng |
building area of the plant 150,000 sq.m. |
Jinzhai |
building area of the plant 300,000 sq.m. |
Bengbu |
building area of the plant 75,000 sq. m. |
Guoyang |
building area of the plant 1.75 million sq.m. |
Yingshang |
plant area 500,000 sq.m. |
Chongqing |
building area of the plant 700,000 sq.m. |

















