... kinds of steel structures, included design and manufacuture, welding beam, column, C and Z -shape purlin. Steel Structure Works:A. ... steel beam and column, etc)1. Steel material: Q2352. Method of productionCutting, forming, drilling, CO2 welding, de- rusting, painting, ... .4, 0.5,0.6mm5. Density of EPS: 8kg-12kg/m26. Color of steel sheet: sea blue, white grey ... C&FPayment: T/T, L/C steel structure works