Anti-corrosion purlin is made of unsaturated polyester resin,continuous alkali-free glass fiber yarn,alkali-free glass fiber chopped strand mat and processing aid.It is made of scientific equipment and anti-corrosion purlins.The design of anti-corrosion purlins is reasonable,and the problem of corrosion of metal purlins is solved.The anti-corrosion purlins meets the requirements for the strength of the purlins of light-weight buildings.The anti-corrosion purlin has the advantages of corrosion resistance,high strength,easy installation,and no need for post-maintenance.