Ningbo Yong Mao Group irm was established on the vasis of Ningbo Investment Casting Foundry,Yin County Yongcheng Investment Casting Foundry,Ningbo Machine Tool Accessory Factory and yin County Yongsheng Tooling Factory in 1995,and Ningbo Investment Foundry is the chief enterprise of the group and is one of the biggest investment precision casting professional enterprises in China. The firm occupies land area of 51633 spuare meters, building area of 27908 spuare metres. he owns total assets over 5,000,000RMB and 750 workers(thiry engineering technicians included)which has qualified through ISO9002 quality system.Major industry of the firm - investment casting, is producing precision steel castings of valve parts, mineral mechanical parts, engineering machinary parts, automobile parts that are made from medium carbon steel,alloy steel stainless steel and other metal.