Agitators for chemical processing; Agitators for circulating liquid media; Drive belts for machines; Drive belts for vacuums; Oil drain pumps; Drive system having two or more synchronous motors coupled through clutches to drive a common load; Shock absorbers for machines; Drying machines and lines for web products, parts for the aforementioned machines, particularly recirculated air driers, inert gas driers, infrared driers, tempering machines and lines for web products, parts for the aforeme...