We are identified as one of the most reliable firms in the industry for manufacturing and supplying a wide assortment of Schaffer Diaphragm Gauge from Kolkata, West Bengal, India. It can be obtained from us at the market leading cost. Range : 0 ? 1, 1.6, 2.5, 4, 6,7, 10, 16 & 25.Kg/cm2. Vacumm & .