Steel Purlin including roof purlin and wall girt which used support the roof and wall panel , Purlin in C and Z section , cold galvanizing coated , purlin is the secondary structure and pass the load from roof to steel frame .
- C section steel : C section steel cold formed by steel roller sheet , light weight and high strength , steel materials Q195-345 which widely used as wall girt and roof purlin .
- Z section steel : Z section steel light weight , high strength and save the quantity of steel ,easily and convenience for erection , Z section steel widely used as roof purlin for steel structure building
- Sag rod fixed on wall girt and roof purlin , which enlarge the stability of purlin , sag rod fabricated by steel rod , diameter : 12mm .
- Wall and roof panel fixed on steel purlin by self-tapping nail .
| C Section Purlin | |||||
| Model | Section Size（mm） | ||||
| H | B | B | C | t | |
| C80 | 80 | 40 | 40 | 15-20 | 2.0-3.0 |
| C100 | 100 | 50 | 50 | 15-20 | 2.0-3.0 |
| C120 | 120 | 50 | 50 | 15-20 | 2.0-3.0 |
| C140 | 140 | 50 | 50 | 15-20 | 2.0-3.0 |
| C160 | 160 | 50 | 50 | 15-20 | 2.0-3.0 |
| C160 | 160 | 60 | 60 | 15-20 | 2.0-3.0 |
| C180 | 180 | 60 | 60 | 15-20 | 2.0-3.0 |
| C200 | 200 | 60 | 60 | 15-20 | 2.0-3.0 |
| C220 | 220 | 60 | 60 | 15-20 | 2.0-3.0 |
| C220 | 220 | 70 | 70 | 15-20 | 2.0-3.0 |
| C250 | 250 | 70 | 70 | 15-20 | 2.0-3.0 |
| C250 | 250 | 80 | 80 | 15-20 | 2.0-3.0 |
| C300 | 300 | 80 | 80 | 15-20 | 2.0-3.0 |
