Welcome to Hysan Foundry and Rongda Machinery, the leading carbon steel and steel alloy, crushing expert in North China. Shandong Hysan Road & Bridge Mechanical Technology Co.Ltd., former as Zibo Heishan Steel Casting Co., Ltd., was founded in 1988 by Mr. Wang Jianrong, the president of Hysan Technology. Hysan Technology is located in Zibo City, Shandong province, China. City of Zibo is a famous central place where producing broadest heavy parts and machines for industry in China. We ...