Ductile Iron Grating

We are offering grating. 1. Metarial: ductile iron 2. Standard: en124, a15---f900 3. Type: round, square, triangle 4. Iso9001: 2008 customer's drawings are accepted specifications: 1. Standard: a15, b125, c250, d400, e600, f900 class as per en124 standard. 2. Materials: ductile iron grey iron. 3. Sizes: could be all kinds. 4. Type: round, square, triangle. 5. Passed iso9001: 2008 6. We can also produce as per customers' designs.