Tender For corrigendum : supply of mining lab equipment for different govt. polytechnic 3 - mining engineering lab equipments 3, abc powder type fire extinguisher 6kg, co2 fire extinguisher 2kg, dry chemical powder dcp type 6 kg, mechanical foam type fire extinguisher stored pressure 9l, water type fire extinguisher 9 kg, wet chemical fire extinguisher 6 litres, crossing point temperature, dgms approved personal dust sampler, combo sampler, self contained closed circuit compressed oxygen breathing apparatus, gas mask, dgms approved chemical type self generating oxygen self rescuer duration 30 minutes