摘要 |
The tongs has a lower crossbow (6), and an upper crossbow (4) that are U-shaped and arc-shaped, respectively. Teeth are provided inside the lower crossbow and the upper crossbow. The lower crossbow is firmly connected with a handle (1). The upper crossbow is supported at the handle through bolts, where the tongs are openable and closable by utilizing a spring (2) and a pressure plate (3).
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