Set Of Material For Calling On/ 'A' Marker Signal Unit:- 1) A Marker Case (Body) Drg. No: S 2 3462, 2) A Marker Cover Drg. No; S 23463, 3) Calling On Signal Ring Drg. No.: S23464, (One Set = 01 No Al. Body, 01 No Al. Cover & 01 No Al. Ring). Material Grade For Aluminum Should Be Lm6. Test Certificate To Be Provided With Nabl Approved Lab With Supply The Material. Sample To Be Got Approved Before Bulk Su Pply (For Dimension Checking Only As Per Drawing).(Shop No.04) [ Warranty Period: 30 Months After The D Ate Of Delivery ] ]