Huian (HA) Industrial Safety Cabinet currently has three colors and six models. Three colors are used to distinguish different types of chemicals. Yellow cabinet represents flammable liquid storage cabinet, red cabinet represents flammable liquid storage cabinet, and blue cabinet represents corrosive liquid storage cabinet. Four models correspond to four storage volumes, HA0004 is 4 gallons, HA0012 is 12 gallons, HA0030 is 30 gallons, HA0045 is 45 gallons, HA0060 is 60 gallons, HA0090 is 90 gallons.