Gem Bids For Inlet Expansion Joint Metallic, For 2335 Mm Dia. Si.Bcb-65/2 Id Fan, Drg. No. : Sketch No. 25042C-M-1, Outlet Expansion Joint Metallic, For 2335 Mm Dia.Si. Bcb-65/2 Id Fan, Drg. No. : Sketch No. 25042C-M-