$1392.00
SE
TRUIT TR 5122 Pendulum Hardness Tester double pendulum
double pendulum
Double pendulum, swing rod weight 120g +/- 0.5g, steel ball diameter 8mm, initial swing angle 5º, end swing angle 2º, oscillation period 0.625s, Glass plate swing time 440 +/- 6s, counting function automatic.

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