The name ‘Activated Alumina' is often applied to a broad class of partially dehydrated aluminas, which are calcined at moderate temperatures, and are used in myriads of applications such as water purification, air and gas drying, and as catalyst carrier and catalysts,... 

Domestic Defluoridation Filter Units, are as per attached drawing, each comprising of two plastic seamless chambers, each of 12 to 15 litre capacity with plastic splash plate and lid made from virgin, food grade HDPE/PVC/PP/PET conforming to the following Indian Standards r... 

Domestic Defluoridation Filter Unit, similar to the attached illustration, consists of two stainless steel seamless containers, each of 12 to 15 litres capacity made from 22G AISI 304 stainless sheets with a stainless steel baffle plate.   The bottom container is...