steel castings for mining machinery 

Investment casting has a long history .Ancient people used castings as life tools. In modern times, castings are mainly used as blank of machine parts, and some precision castings can also be directly used as machine parts. Casting accounts for a large proportion in mechanical products. For example, in tractors, casting weight accounts for about 50 ~ 70% of the whole machine weight, in agricultural machinery 40 ~ 70%, in machine tools, internal combustion engines, etc. 70 ~ 90%.Among all kinds of castings, the most mechanical castings account for 60% of the total castings .Second, metallurgical ingot molds and engineering pipes, as well as some tools in life. Casting is also closely related to daily life. For example, train parts castings, auto parts castings, truck parts castings, forklift parts castings, pump valve castings and so on Our company can provide customers with a variety of shapes of product research and developme…