1. MATERIAL: AS3678 GR250.2. REMOVE ALL BURRS AND SHARP EDGES.3. ABRASIVE BLAST TO 1627.4 CLASS 2.5 ALL OVER.4. TOP SURFACE AND EDGES TO BE PRIME PAINTED WITH ZINC RICHEPOXY - 75|jm DFT.5. BOTTOM SURFACE TO BE PROTECTED AGAINST RUST WITH AREMOVEABLE COATING.