Розмір відео: 1280 X 720853 X 480640 X 360
Показувати елементи керування програвачем
Автоматичне відтворення
Автоповтор
I work for a spring manufacturer and the tape is actually a spring. Due to the curve it always wants to return to the coil. The same type of spring is used in modern windows in lieu of the old counter balance weights. Thanks for sharing!
I work for a spring manufacturer and the tape is actually a spring. Due to the curve it always wants to return to the coil. The same type of spring is used in modern windows in lieu of the old counter balance weights. Thanks for sharing!