US$ 99.90
Open-frame demonstration DC motor exposing armature
this super-taster set pairs PTC
5-inch base
dermal papillae
Speed-controlled 6V motor driving two cams pumps four spring-mass systems at any chosen frequency
Round Polypropylene Test Tube Rack for 12 Mixed Tubes (4 x 25mm + 8 x 19mm) Clearance Open-frame demonstration DC motor exposingPolypropylene round test tube rack holding 12 tubes four at 25 mm and eight at 19 mm with 360 degree access for benchtop chemistry demonstrations and student experiments.
US$ 99.90
US$ 165.00
US$ 449.50
US$ 212.50
US$ 107.30