Rolling Shutter Shall Be Of Aluminium Extrusion To Spec 1S:733-83 63400Wp F Or Material And Is:6248-79 For Shutter Design. Suitable Locks Shall Be Provided In Open & Fully Closed Position & Handle Shall Be Of Commerical Make. Rolling Shutter Should Sui T Framework Of Width 682Mm And Should Have Shutter Clear Opening Of 1750Mm As Per D Rawing No. Train 18/Mc/Ac-6-005 , Item No 5 Or Latest. [ Warranty Period: 30 Months After The Date Of Delivery ] ]