supply of set of pressure gauge 80 x 10 mm for lhb coaches to midlands d rg no a4mlhb140901 part no 55900010 for bc drg no a4mlhb140902 part no 559000020 f or bp drg no a4mlhb 140903 part no 55900030 for fp or equivalent for axle mounted disc brake system as per rdso specification rdso 2011 cg 04 note each set consisti ng of 03 gauges bc bp and fp each 01 number make brand top grip indus instrument s pvt ltd or midlands co or h k company or vendors approved for pressure ga uges as per rdso spec