The custom aluminum heat sink supplier introduces you to the heat treatment of ductile iron.
The shape of ductile iron manhole covers is round, and the performance is very good.
Ductile iron parts are the most widely used metal castings in more and more engineering finished products, machinery and equipment, and parts and accessories.
Ductile iron is a high-strength cast iron material developed in the 1950s. Its comprehensive performance is close to that of steel.