supply of one set of following composite pipes & fittings for lwaccne &lomac coaches. 1.composite pipes 2025 to is 15450-2004-10.5 mtrs. 2.male threadconnector 2025 x 3/4 is 15450-2004, annexure a-6 nos 3.female thread connector 2025 x 3/4 to is15450-2004,annexure a-2 nos 4.female thread connector 1620 x 1/2 to is 15450-2004, annexure a-2 nos5.female elbow 1620 x 3/4 to is 15450-2004,annexure a-4 nos.