Hydrostatic Balance

) Hydrostatic Balance :- With Aluminum beam and third pan with hook, all on wooden base Cap. 250 grm. b) Hydrostatic Balance :- Do same but with Brass beam and fitting of Cap. 250 gms. c) Hydrostatic Balance :- Same as above but of Cap. 500 gms. with aluminum fitting d) Hydrostatic Balance :- Ditto, but with brass fitting, 500 gms cap.