Bottom Gasket For Vertical Dbr Foundation, As Per Drg No-Elw/Bsl/4/F 87.002 Alt-1. Material To Be Procured From Clw Approved Source Only. Test Slab/ Test Button Is Required To Test The Rubber Propert Y At The Time Of Supply. Clw Item Id-2101221 [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]