US$ 88.99
Five-cylinder equal-mass set at 30g each in zinc
Life-size right lung separates into two parts exposing bronchial tree and alveolar structure
and crater within internal rock layers
and chemistry heating applications
Glass Lens Set, 2", 6 Optical Types Pack Size_6 Five-cylinder equal-mass set at 30gGround, polished, and packaged as a single optics kit, this six lens glass set covers double convex, double concave, plano convex, plano concave, and concavo convex forms for classroom work.
US$ 88.99
US$ 50.00
US$ 75.00
US$ 88.99
US$ 90.00