Filter Bag (I/D 150 Mm X 4050 Mm Long) For Fume Extraction System-3 To Rwf Drawing No 731900310590. Note: A) Five Numbers As Sample Should Be Supplied For Appro Val Before Bulk Supply. B) Material Test Certificate For Various Parameters As Per Draw Ing Must Accompany The Supply. C) A Cloth Label Indicating The Supplier'S Name And Po Re Ference Shall Be Stitched At The Hand Grip For Each Bag For Identification Purpose. ]