Sandwich-Panels Sri Lanka Import and Export Companies

We are a steel building construction firm in Sri Lanka. Please quote for our first project as follows. 1) Polyvinylidene fluoride (pvdf finish) 50mm thick sandwich panels with 0.50mm top and 0.70mm bottom panel – 1500 sqm. 2) 50mm thick sandwich panels with rock wool insulation with 0.5mm thick Zn/Al colourbond sheet top and bottom panel – 4500 sqm.