Tender For supply of machines and laboratory equipment for civil engineering consultancy lab in the premises of government polytechnic siwan, bawandih, siwan- 841203 - ultra sonic pulse velocity instrument , rebound hammer split tensile strength attachment , water bath , cube sieve shaker , cbr test , , brass sieve plate bearing test apparatus , , heavy proctor test , gi sieve( 450mm dia) , laboratory permeability apparatus ( constant head & falling head) , hydrometer apparatus , pycnometer , specific gravity and water absorption , fatigue testing machine