supply of wing handle with key of material stainless steel equivalent to dirak part no. 352 2199.04 - 00000 suitabl e for switchboard cabinet of lhb ac coaches confirming to rdso spec rdso/pe/spec/ac/0184-2015 (rev.1). material is dirak part no. 352 - 2199.04 - 00000 or equivalent part of south co. or arihant or darshana. [ warranty period: 30 mo nths after the date of delivery ] ] sse/ac/chz, scr