manufacture and supply of cms crossing 1 in 12 60 kg to rdso drawing no.- t-4220,alt-07/latest alteration confirming to irs specification irs:t-29-revised-2023 for cast manganese steel crossing complete with single coil spring washer, bolts and nuts of different sizes, cast iron distance block packing pieces, ms tapered washer and check rail blocks excluding other items including in the drawing.
