Positioning column 1.size:2.4*0.6m,2.2*0.6m 2.overall hot galvanized 3.Easy to install and feed 4.convenient for management Positioning column for pig farming Description: 1) Galvanized steel pipe, adopt the carbon dioxide protection welding, and welding firm, smooth, without burr,can’t hurt pigs. 2)Easy to install and feed,convenient for management. 3) All size can be available,can produce as ...