supply of one set of ss tubes and double ferrule for brake piping arrangement of lhb bogies consisting of 10 items.(for quil spring) (1). bulk head elbow (with conical seating) 3/4od x m26 x 1.5(m) to drg.no.icf/std-3-5-113 ,item-1,alt c qty-3 nos. (2). bulk head male connector 3/4 od x 1/2 bsp to drg. no.icf/std-3-5-114-item1,alteqty-4 nos (3). female run tee connector 3/4 od x 1/2bsp x 3/4 od to drg. no.icf/std-3-5-119-item-1,altc, qty-l (4). bulk head elbow 3/4 od to drg. no. icf/std-3-5-117-item-1,altb qty-l nos (5) female run tee connector with conical seating 3/4 od x 1/2 bsp xm26 x 1.5to drg.icf/std-3-5-118-item-1, altnil qty-l nos (6). male elbow with conical seating 1/2 bspt(m) x m26 x 1.5(m) to drg.no.icf/std-3-5- 115,item-1,altnil,qty-4 nos (7).special adaptor 1/2 bsp(m) x 1/2 bspt(f) to drg. no. icf/std-3-5-116-item-1,altb,qty-4 nos (8). female connector 3/4 od x 1/2 bsp to drg. no. icf/std-3-5-107-item2,alte,qty-4nos (9). hex nipple 1/2 bsp