Supply Of Bis Listed Semi -Automatic Stainless Steel Preventive Device With Ul Approved Clean Gas With Auto Manual Reverse Stainless Steel Valve Nasa 400 Mar' Having Capacity Of 04 Kgs And Made Of S Tainless Steel 304 Grade As Per Technical Specification Attached. Bis No. Is Bis -15683:2018. [ Warranty P Eriod: 30 Months After The Date Of Delivery ] ]