The foundry covers 5200 square meters and the maximum lifting weight is 20 tons. Besides, the foundry equipped with two set of 5-tons cupola, one set of 2-tons arc furnace, one set of 0.5-ton high frequency furnace and two production lines of resin sand. It can produce all kinds of pump metal castings including extra-low-carbon stainless steel casting. Annually iron casting is up to 15000 tons and annually steel casting is up to 1500 tons. Compare to tradition loam molding, our resin sand molding lower two levels of casting surface roughness , improve the smooth finish of casting and precision of casting size and make the casting internal materials better.