Electric actuators for valves; pneumatic actuators for valves; hydraulic actuators for valves; chemical processing machines and apparatus, namely, blending machines, dissolving machines, separating machines, disintegrators and agitators, all for chemical processing; non-electric prime movers not for land vehicles, namely, motors and engines; shaft couplings, axles for machines, and spindles being parts of machines, all not for land vehicles; machine elements not for land vehicles, namely, bea...