US$ 14.95
one fitted with an exploder piston for momentum and action-reaction investigations
Equal-mass density set in aluminum
calibrated to 2
this six-metal density cube set of brass
and HVAC work
Premium Dicot Stem Model with Transverse Section, on Base Waves & Oscillation_Sound & Resonance one fitted with an exploderGreatly magnified transverse dicot stem model on a mounted base exposes vascular bundle arrangement and primary tissue layers for advanced botany teaching.
US$ 14.95
US$ 2492.00
US$ 102.06
US$ 11.90
US$ 17.90
US$ 21.90
US$ 11.90
US$ 13.90