Tender For corrigendum : supply of activated carbon, type granular form particle size: -4/8 mm, part no. - sam/ac/ 023, make: - sam. , gsr valve 1" , type - change over valve on/off type for psa unit, part no. sam/ gsr/25/01, make: - sam , coconut jute, part no. - sam/ cj/25/012, make: - sam. , carbonmolecularsieves, type -cylindrically shaped pellets forms, bulk density-650-690 g/l, part no