supply of supply of empty refrigernt gas cylinder suitable for r-407 & r-22 gas. having capacity 10 kg with protection cap (guard) valve of the cylinder should be as per is :3224, material should be confirming as per gas cylinder rules 2016. cyclender should be supplied along with explosive certificate from chief controller/petrolieum and explosive safety organisation.supply of empty refrigernt gas cylinder suitable for r-407 & r-22 gas. having capacity 10 kg with protection cap (guard) valve of the cylinder should be as per is :3224, material should be confirming as per gas cylinder rules 2016. cyclender should be supplied along with explosive certificate from chief controller/petrolieum and explosive safety organisation.,supply of empty refrigernt gas cylinder suitable for r-407 & r-22 gas. having ca pacity 10 kg with protection cap (guard) valve of the cylinder should be as per is :3224, mat erial should be confirming as per gas cylinder rules 2016. cyclender should be supplied al ong with explosive certificate from chief controller/petrolieum and explosive safety orga nisation. [ warranty period: 30 months after the date of delivery ] ]