... 4mm,4-7mm,7-15mm,15-25mm,25-50mm,50-80mm Gas Yield:295L/KGPackage: 50KG,100KG Iron ... fule in steelmaking to extend to scrap ratio to liquid iron depending on economics.It is also used as ... materials,the combination can produce acetylene,chloroprene rubber,calcium cyanamide,acetate acid,trichloroethylene,and acetaldehyde.Moreover,it can be ... for metal cutting and welding. Calcium Carbide 50-80mm