Testwel Instruments Company, New Delhi, (Bitumen Testing Equipment, Concrete Testing Equipment, Cement Testing Equipment, Lime Testing Equipment, Plaster Testing Equipment, Gypsum Testing Equipment, Mortar Testing Equipment, Asphalt Testing Equipment, Rock Testing Instruments, Material Testing Instrument, Aggregate Testing Instruments, Stone & Tile Testing Instruments, Industrial Testing Instruments, Soil Testing Equipments, Surveying Instruments, Compression Testing Machine, Marshall Stability Tester, Automatic Bitumen Penetro Meter, Diamond Core Drilling Machine, General Laboratory Hot Air Oven)