US$ 224500.00
the wider working face giving longer beam paths for clear refraction-angle measurements
10-inch vacuum pump plate on an aluminum base with a stopcock and rubber seal
this 20mm-diameter steel helix carries longitudinal
the elongated triangular body fitting wider-beam refraction setups and class-front dispersion demonstrations
Wooden Test Tube Support, 13-Place Material_Borosilicate Glass the wider working face givingThirteen place hardwood test tube rack combining seven 19 mm holes and six 25 mm holes with six draining pins for mixed size tube storage in student laboratories.
US$ 224500.00
US$ 173.00