... have two kinds of linear guides, ball guide(Model: GGB) and roller guide(Model: GZB), and accuracy with 2, 3, 4, 5 ... 6m/pc Production according to customer's request, block and rail assembled for the shipping. Characteristic: Heavy load, low noise, high ... speed, high accuracy; Normally used for machining center, grinding machinery, heavy machinery etc.SHANDONG TONGYA TRAFFIC ...