Gem Bids For Inlet Expansion Joint Non-metallic, For 2335 Mmdia. Si. Bcb-65/2 Id Fan, Drg. No. : Sketch No. 25042c, Outlet Expansion Joint Non-metallic, For 2335 Mmdia. Si. Bcb-65/2 Id Fan, Drg. No. : Sketch No. 25042