... is hard to be worn.Vacuum suction box:4sets ,one is beak pattern suction box with width of 150mm,the other three with ... jointed by armor plate ,material is polythene.This Stander is box pattern cast iron stander, material is HT200,vertical bar is 400mm ... ×2200×2900mm,bearing 113520,width is 14mm. This Stander is box pattern cast iron stander, it is jointed by steel plate ,unfolding ...