It is composed with U-shape magnet, contact tube, junction pole, bracket.
The contact tube is made of thin wall copper tube which connect with same length of the lead, hanging between the U-shape magnet pole, when the contact tube transit the strong electric current, the contact tube will make swing.
Model – QH 2404
Brand – QINGHUA
Country of Origin – China
Size (cm) – 22 x 10 x 26
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