联轴器Coupling Omega E120 HDY flex element REX OMEGA 2,REX OMEG 3,REX OMEGA 4,REX OMEGA 5,REX OMEGA 10,REX OMEGA 20,REX OMEGA 30,REX OMEGA 40,REX OMEGA 50,REX OMEGA 60,REX OMEGA 70,REX OMEGA 80,REX OMEGA 100,REX OMEGA 120,REX OMEGA 140