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Junior high school pulley group physics experiment student pulley group and bracket metal hook code bar dynamometer spring teaching aids set fixed pulley pulley group primary school science mechanics experimental equipment

  • Unit Price:$3.57
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  • Item#:641465493098
  • Location:China
  • Selected:loading
  • Quantity: (2823 available)
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Color classification:
Pulley set set one pulley set two pulley set three pulley sets and brackets Bar dynamometer 1N bar dynamometer 2.5N bar dynamometer 5N bar dynamometer 10N combination hook code Metal hook code (50gx10pcs) Metal hook code (200gx4pcs) Metal slot code Bar dynamometer 5N10N + metal hook code 50g*10 Bar dynamometer 5N10N + combination hook code Bar dynamometer 5N10N + metal hook code 200g*4
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