Tenders for Supply of Rotary Screw Electrical Driven Oil Free. Rotary Screw Electrical Driven Oil Free Air Compressor Item No. 202 Of Cofmow Compendium Is Sue Vide Letter No. Cofmow/Ir/M-003/2 Date 01/06/2018. Material Require As Per Clause 2 Of Technical Specific Ation Attached With Nit As Annexure Ii. Warranty Period: 30 Months After The Date Of Delivery