Calcium carbide; 1.Gas yield:295L/kg min 2.In 50/100/120/200kg drum 3.Size:1-3,2-4,4-7,7-15,15-25,25-50,50-80, ... .10National StandardGB10665-2004 Application:1,Calcium Carbide reacting with water to generate acetylene gas, which is mainly used for metal welding and cutting;2, ... avoid meeting water and moisture.It should give off the acetylene in iron drum before storing in warehouse. Rolling drums, ...