passed ISO9001:2008 and KGS certificate 12kg dry powder fire extinguisher carbon steel cylinder with the hose ... kinds,like 450g,500g,1kg...This kind is made of dry powder , easy to use.This product is made of carbon ... steel cylinder,and filled with dry powder.Aslo we can change it into other materials .Our ... with the quality of our products. 12 kg dry powder fire extinguisher