who started career as diamond sorter in mumbai
Gautam Adani After working as a diamond sorter at Mahindra Brothers for two years, Adani set up his own diamond brokerage business in Mumbai, India.[4] Mahasukh Adani, his elder brother, called him back to Ahmedabad to run his newly purchased plastic factory.[4] He soon started commodity trading by importing polyvinyl chloride (PVC), a key raw material for manufacturing plastic.[4]
Diamond tool Diamond is one of the hardest natural materials on earth; much harder than corundum and silicon carbide. Diamond also has high strength, good wear resistance, and a low friction coefficient. So when used as an abrasive, it has many obvious advantages over many other common abrasives.