tender for rubber kit for overhauling maintenance for a-9 valve comprising of 8 items as per sr. no. (1) item- diaphragm, drg. no. sk dp 3052 alt-1 qty/set =01 nos. sr.no.(2) item - o ring , drg. no. sk dp 3031,qty.set =02 nos. sr.no. (3) item - o ring, drg. no. sk dp 3031, qty./set =01 no. sr.no.(4) item - o ring, drg.no. sk dp 3031, qty./set =01 no. sr.no (5) item - o ring, drg. no. sk dp 3031, qty./set =01 no. sr.no (6)item - o ring, drg. no. sk dp 3031, qty./set =02 nos.sr.no.(7) item -seal valve , drg.no. sk dp 3044,qty./set= 01 no. sr.no. (8) item - gasket , drg.no. sk dp 3056 alt.1, qty./set = 01 no.