supply of self sealing die moulded endless rings suitable for czech design valves, gland packing rings, soft iron gaskets and spiral wound gaskets suitable for high pressure valves of 210 mw capacity unit i, ii and iii boiler , supply of self sealing die moulded endless rings suitable for czech design high pressure valves of unit i, ii & iii boiler (make:james walkerin marco or its equivalent)-(as per drawing ) , 125 mm od x 100 mm id x 18 mm height , 150 mm od x 120 mm id x 20mm height , 170 mm od x 136 mm id x 21 mm height , 200 mm od x 160 mm id x 28 mm height , 280 mm od x 240 mm id x 32 mm height , 330 mm od x 264 mm id x 40 mm height , james walker inmarco style 800 premium grade or its equivalent make expanded graphite fibre yarn packing reinforced with inconnel wire for high pressure valves. , 22.5 mm od x 10 mm id x 6.2 mm height , 23 mm od x 10 mm id x 5 mm height , 25.4 mm od x 15.9 mm id x 4.8 mm height , 28 mm od x 16 mm id x 6 mm height , 32 mm od x 19 mm id x 7 mm height , 32.6 mm od x 14.3 mm id x 6.4 mm height , 40 mm od x 24 mm id x 8 mm height , 41 mm od x 17 mm id x 6 mm height , 42.6 mm od x 18.4 mm id x 12 mm height , 44 mm od x 32 mm id x 8 mm height , 46 mm od x 30 mm id x 6 mm height , 48 mm od x 32 mm id x 8 mm height , 54 mm od x 34 mm id x 10 mm height , 55.6 mm od x 27 mm id x 14 mm height , 60 mm od x 40 mm id x 10 mm height , 68 mm od x 48 mm id x 10 mm height , 80 mm od x 60 mm id x 10 mm height , 52 mm od x 36 mm id x 8 mm height , 66 mm od x 42 mm id x 12 mm height , 46 mm od x 28 mm id x 10 mm height , 52 mm od x 32 mm id x 8 mm height , 76.3 mm od x 60.3 mm id x 42 mm height , james walker inmarco or its equivalent make soft iron 90 bhn hardness annealed seal ring gasket suitablefor toa design high pressure valves. , 90 mm od x 80 mm id x 10 mm height , 95 mm od x 85 mm id x 10 mm height , 115 mm od x 101 mm id x 14 mm height , 175 mm od x 151 mm id x 24 mm height , james walker inmarco or its equivalent make spiral wound gaskets