Calcium Carbide 305/ 295 /285L/KG; 50-80mm;25-50mm 1.Manufacturer &factory ... .Free sample 3.size:80-120mm, 50-80mm, Calcium Carbide 305/ 295 /285L/KG; 50-80mm;25-50mm Products name:Calcium ... -4mm etc. Gas yield 285 l/kg, 295 l/kg, 305 l/kg, All of our products are packed with 50kg ... : 86-27-86371632Fax: 86-27-86371597Skype ID: viviane9816 Calcium Carbide 305/ 295 /285L/KG; 50-80mm;25-50mm