supply of set of coupling cap, double ferrule 10mm ss fittings as per clw spec. no. clw/ms/3/053 alt-21 or latest if any consisting of 03 items as follows. 1) coupling nut 10mm od. qty. = 500 nos./set. 2) front ferrule 10mm od. qty. = 1000 nos./set. 3) back ferrule 10mm od. qty. = 1000 nos./set. [ warranty period: 30 months after the date of deli very ] ]