US$ 23.98
endodermis
sized for weighing
or Meker burners
Hand-cranked 4-stroke gasoline engine model at 13
Pair of 12 by 3
Push/Pull Balance, 250g/2.5N Material_Zinc endodermisTwo hundred fifty gram push pull balance in an acrylic tubular body, calibrated to 2. 5 newtons for measuring small forces during spring law and tension force classroom investigations.
US$ 23.98
US$ 30.99
US$ 55.95
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