... and High Quality Control 2.Prompt Delivery 3.Competitive Prices 4.SAE, ISO9001:2008 counterweight iron sand 1 Well and High ... Quality Control 2,Prompt Delivery 3,Competitive Prices 4,SAE, ISO9001:2008Application scope : Counterweight , Carbon additive for foundries, Displacement ... C Si Mn P S Z14-Z34 3.3-4.5 1.60-3.20 0.5-0.8 0.05-0 ...