tender for general caution notice plate made of 2mm aluminum sheet of size 250x 225 mm pasted with nonreflective sheet in white colour and letters /symbols of retro reflective type-iv high intensity prismaticsheeting in single red colour reference as per rdso no. re/33/p/7561 mod-b & rdso specificationno.eti/ohe/33a(12/97) rev.8 or ( latest rev) make- core approved sources .