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Spring scale 12kg portable mechanical hook scale 100kg Yellow Hook scale 25kg hanging scale 50kg portable scale

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Manufacturer Customized High Quality and Low Price Pk Series 12kg Satchel Scale, Accurate Crane Scale, Kitchen Scale

Strip box dynamometer 1N 2.5N 5N 10N spring dynamometer Junior High School mechanics experimental instrument

Factory Direct Supply] High Quality Low Price PK Series 50KG Portable Scale

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