supply of domino panel knobs with 4no / 4 nc contact with consist of the following colours: 1).red: 150 nos, 2). black:150 nos, 3). yellow:150 nos, 4). green:150 nos, 5). gray:150 nos 6). white:150 nos.make: recom, model no.c10p446b preferable or equivalent note: one sample to be got approved byconsignee before bulk supply.