Tender For tender for supply of heater assembly 2 mts part no zr22a 200 n a , zirconia cell assembly for o2 analyzer , contact spring for o2 analyzer , metal o ring for o2 analyzer , 4 bolts and 4 washers 02 analyzer , zirconia probe for oxygen analyser , mesh filter for o2 analyzer , pt1000 cj assembly 02 analyer