supply of circuit board assembly for air dryer of m/s.knorr bremse model no. ltz 015-2 and kbi part no stn 21386/072. this is a child part of air dryer with unified pl no 11810725.since air dryer is a safety item as per rb l.no.2022/rs(ic)/165/irc dtd.24.08.2022 sr. no 46 and its work is to provide clean and moisture free air to locomotive air brake system hence directly related to safety of train operationcircuit board assembly for air dryer of m/s.knorr bremse model no. ltz 015-2 and kbi part no stn 21386/072. this is a child part of air dryer with unified pl no 11810725.since air dryer is a safety item as per rb l.no.2022/rs(ic)/165/irc dtd.24.08.2022 sr. no 46 and its work is to provide clean and moisture free air to locomotive air brake system hence directly related to safety of train operation,circuit board assembly for air dryer of m/s.knorr bremse model no. ltz 015 -2 and kbi part no stn 21386/072. this is a child part of air dryer with unified pl no 11810725.since air dryer is a safety item as per rb l.no.2022/rs(ic)/165/irc dtd.24.08.2022 sr. no 46 and its work is to provide clean and moisture free air to locomotive air brake system is to provide clean and moisture free air to locomotive air brake system hence directly related to safety of train operation hence this m aterial to be procured from blw approved sources or its authorized dealer only. [ warranty period: 30 months after the date of delivery ] ] => limited