bids are invited for materails only for 50 mm bore gate valve gun metal class ii screwed both ends for iron pipe - materails only for 50 mm bore gate valve gun metal class ii screwed both ends for iron pipe and fixed complete all as specified. , materails onlyfor 40 mm bore gate valve gun metal class ii screwed both ends for iron pipe - materails onlyfor 40 mm bore gate valve gun metal class ii screwed both ends for iron pipe and fixed complete all as specified. , materails only for 25 mm bore gate valve gun metal class ii screwed both ends for iron pipe - materails only for 25 mm bore gate valve gun metal class ii screwed both ends for iron pipe and fixed complete all as specified. , materails only for 20 mm bore gate valve gun metal class ii screwed both ends for iron pipe - materails only for 20 mm bore gate valve gun metal class ii screwed both ends for iron pipe and fixed complete all as specified. , materails only for 25 mm diaball valves high pressure of ptmt with epoxy coated - materails only for 25 mm diaball valves high pressure of ptmt with epoxy coated aluminium rod & highdensity plastic ball screwed for iron pipe and fixed. (minimum weight 15mm142gms/m 2 0 m m 2 1 0 g m s . / 25mm455gms/ 40mm 690 gms) , materails only for 20 mm diaball valves high pressure of ptmt with epoxy coated - materails only for 20 mm diaball valves high pressure of ptmt with epoxy coated aluminium rod & highdensity plastic ball screwed for iron pipe and fixed. (minimum weight 15mm142gms/m 2 0 m m 2 1 0 g m s . / 25mm455gms/ 40mm 690 gms) , ganti pickaxe with handle not less than 2kg with smooth handle 3mtr - ganti/pickaxe with handle not less than 2kg with smooth handle 3mtr total quantity : 21