1.10 year manufacture experience,reliable quality. 2.Factory price,competitive 3.Exported all over the world. 1.Collector ringA.Specification:B.Installation: 2.Rod linkage 516-2x16" full thread3.Cable joint4.coupler 5.Clamp 6-5/8" T bolt S/S6.Percent timer eagle signal7.3/4 Gear box8.3/4 Gear motor9.Tower box Center pivot for irrigation system,colloector ring,tower box,rod linkage