Boost Your Solar Projects with High-Quality Cement Slabs, Concrete Blocks, Metal Plates, and Steel Plates. Weight of concrete slab is calculated by L x W x H (m) x 2.5 Ton. Metal Plate 500 x 500 x 15 mm = 40kg

Ready stock for ballast 450x450x75mm 38kg and 300x300x120mm 21kg