Tender for Supply Of Steel Tube Galvanised Isi Mark In Random Length Of 4 To 7 Mts. Screwed At Both Ends Socket Ed At One End And Other End Protected With Plastic Protector, Nominal Bore 20 Mm Medium Class, Socket Shall Also Be Isi Marked." Specn: Material Spec : Is-1239 (pt-i) : 2004 For Tube, Is:1239 (pt.2): 2011 For Soc Ket And Is:554:1999 For Pipe Thread [ Warranty Period: 30 Months After The Date Of Delivery ] in Dibrugarh - Assam

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