Liquefied Petroleum Gas, Type : Commercial Butane- Propane Mixture,Confirming To Is:4576-1999 (Second Revision) With Amendment No 1 Of M Ay 2003 (Reaffirmed 2009) Edition 3.1 (2003-05) In 19 Kgs Cylinders. As Per Specn. Cylinders. [ Warranty Period: 30 Months After The Date Of Delivery ] ]