1.Certificate:CE 2.Capacity:0.5kg,1kg,3kg,4kg,6kg... 3.Cylinder material:carbon steel 4.Support OEM ... 4A144BBrand product,high quality,competitive priceDry powder:0.5kg,1kg, 2kg, 3kg, 4kg, 5kg,8kgFoam/water fire extinguisher: 6L,9L,Co2:2kg 5kg 7kg ...