| Message: | 2 Ton Spiral Jack is mechanism defined by a connected series of levels,with screw bar to adjust the height.It is made of high-quality steel, which ensures the safety.The screw jack is rotated by the manpower through the screw pair, and the screw or nut sleeve is used as the lifting member. This jack is small in size, compact in structure and easy to carry. url:http://www.omglift.com |
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