Tender For supply of set of roof hatch gasket for wap7/wag9 locomotive consists of:-- (1)m16 roof hatch assembly gasket as per clw's drg. no.- 1209-10.437-075 (alt.-i or latest), qty.- 1 no. & (ii) m24 roof hatch assembly gasket as per clws drg. no.- 1209- 10.437-076 (alt.-i or latest), qty.- 1 no.