Model Number: MW-770-S Brand Name: BOF Key Specifications/Special Features: Material: Ductile iron 500-7Overall size: 770x770x210Description: Include frame, structure, pan, and two ears.Paint: black bitumen, epoxy coating or customizedWe have more than 26 years experiences on manufacturing a variety of casting products in ductile iron and gray cast iron, especially manhole covers and gratings.