400mm laser welded concrete saw blades are special designed for cutting concrete, cured concrete, green concrete, reinforced concrete, etc. It provides stable performance, outstanding cutting speed, and long life on any kind of concrete materials. These blades will give you the best performance and price. Widely used in construction industry. Diameter 400mm Segment spec.: 40x3.4x10/12mmx28nos Delivery time: 20~30days