HSN code and rate of gst

WHAT TYPE OF SAFETY ITEMS ??

1. Fire extinguishers -- HSN CODE ::8424 -- RATE 28%

2. Mechanical appliances (whether or not hand-operated) for projecting, dispersing or spraying liquids or powders; spray guns and similar appliances; steam or sand blasting machines and similar jet projecting machines [other than fire extinguishers, whether or not charged] HSN CODE ::8424 -- RATE 18%