tender for louver part complete for lavatory window for lhb coaches to rcf drg. no. mi007169, alt. nil.louver part with 10 pcs shim as per drg. no. lw54162 and 06 pcs ss screw (8 x 13 mm). isfor screw: is 7173-1989. one number = all items of louver part as per mi007169 alt nil + 10 pieces ofshim as per drg. no. lw54162 + 06 pieces of ss screw (8 x 13 mm) as per is 7173-1989) .