Balances Spring ?ó?é¼?ǣ Dual Scale Metal 2000gm 20N Capacity_1000mL For introducing standing waves For introducing standing waves and reactive metal electrolysis behavior Flat form case with large easily read scale in Metric and Newton range 2000gm 20N
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Balances Spring ?ó?é¼?ǣ Dual Scale Metal 2000gm / 20N Capacity_1000mL For introducing standing waves