bids are invited for bdk make diaphragm and diaphragm valves make 50mm type normally close , 15 spare epdm rubber diaphragms screwed type , 16 spare epdm rubber diaphragms screwed type suitable for b d k weir make 65mm type normally close , 17 spare epdm rubber diaphragms screwed type suitable for b d k weir make 80mm type normally open , 18 spare epdm rubber diaphragms screwed type suitable for b d k weir make 80mm type normally close , 19 weir bdk make diaphragm size 15mm s weir type s2k series moc neoprene rubber , 20 weir bdk make diaphragm size 20mm s weir type s2k series moc neoprene rubber , 21 weir bdk make diaphragm size 25mm s weir type s2k series moc neoprene rubber , 22 weir bdk make diaphragm size 40mm s weir type s2k series moc neoprene rubber , 23 weir bdk make diaphragm size 50mm , 24 weir bdk make diaphragm size 80mm 2 25 , needle valve total quantity : 1370