... -15,15-25,25-50,50-80,80-120MM11. Packing50kg or 100kg iron drumCautions during transportion:The packing must be kept ... to avoid the spark leads to explosion.Property: Grey, brown or black solid, purple when its purity is higher, the specific ... of steel and for cutting and welding metals.Packing: 50kgs/100kgs new iron drums. Used in the generation of acetylene gas for welding, and as a ...