Used for forging hammer As of branch of Zhuda Group, Tangshan Guofeng Metallurgical Rolls ... , with ISO90001 certificate.We own 20-ton electrcial arc furnace, 40-ton electrical arc furnace, 45-ton ladle furnace, 45-VOD ... .Our cast steel parts include slag pot, H profile roll, Forging hammer cylinder, hydraulic cylinder, bearing chock, rolling mill housing, rotary kiln ...