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Persona de contacto Mr. liu
#191 Yuhuan Rd., Qingdao, Shandong China
1.Adopting double-spring design, opening lightly and closing smoothly, prolonging service life. ***** pressure reducing value: Using to prevent the destruction of the floor spring or oil Leakage on occasions that the door is closed by strong pressure or wind force. ***** design, suitable for left or right hand to open the door in single and both sides. 4.Use low temperature frostbite hydraulic oil, ensuring the normal door-closing speed when the Temperature is forty degree below zero degree. ***** cement container, 6mm adjustable in length, 5mm in width and *0mm in length, which is convient For assembling. 6.Super thin designed, enable it convenient to installed in district with special demands.
