bids are invited for needle valves and check valves for test benches needle valve model no - 20uv61v , needle valve model no - 20uv62v , needle valve model no - 60uv41v , needle valve model no - dhp4f , check valve model no - 60sc4 gemarpts searched needle valves and check valves for test benches strings used in gemarpts gate, globe and check valves for water work purposes- is:778, swing check type reflux valves for water works gemarpts searched purposes (single door pattern) (v2) as per is 5312 (part1), result generated in gemarpts swing check type reflux (non-return] valves for water work purpose - is 5312 relevant industrial check valves-is:11733 needle valve categories selected for notification total quantity : 50