Gem Bids For Differential Pressure Gauge, Range: 0 To 2500 Mmwc & 0-10 M3/hr. , Differential Pressure Gauge, Range 0 To 3500 Mmwc & 0-800 M3/hr. , Differential Pressure Gauge, Range 0 To 1500 Mmwc / 0– 60 M3 / Hr , Differential Pressure Gauge, Range: 0 To 1 Kg/cm² Additional Specification As Per Below Attached