Gem bids for Supply And Installation Of Chemical Earthing, 100 Supply Of 17Point2 Mm Dia 3 Mtr Long Copper Bonded Earth Rod Installation Of 17Point2 Mm Dia 3 Mtr Long Copper Bonded Earth Rod Accessories Required For Installation Of Chemical Earthing Supply Of Gi Strip 50 Into 6 Mm Laying Of Gi Strip 50 Into 6 Mm