... all steel construction,including:can,pipe pump,sput tie-in and nuts and so on long life and easy ... all steel construction,including:can,pipe pump,sput tie-in and nuts and so on we take advantage of ... fluently easy use design,with all steel construction,in which some important parts maybe changed to plastic ... small but necessery part,such as spout,nuts,tie-in,we produce them with steel instead of plastic ...