... in the foundry industry first cast steel shot blasting machine ,metallurgy machine Blasting equipment used in the foundry industry first cast steel ... of the steel casting, gray casting, DISA 130-2.5RK Blasting Malleable iron fittings, ductile iron fittings, etc. should be carried ... a surface defect found in castings, such as skin pores, slag holes and sticky sand, cold shut, from skin and other ...