4. Lò Xo Đặc Biệt (Specialty Springs)
Mousetraps
When the cold weather arrives, the mice will surely look for a warm place to live throughout the winter, a place such as your house. The bane of every household rodent, the mousetrap relies on a spring-loaded bar, a torsion spring, to quickly and effectively put an end to the common pest. Once the torsion spring is pulled back, the mousetrap stores the mechanical energy until the trap is released.
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