Pumps, namely progressive cavity pumps, hose pumps, gerotor pumps, peristaltic pumps, rotary lobe pumps, lobe pumps, dosation pumps, metering pumps, electro pumps, suction and force pumps; positive displacement pump parts, namely pump diaphragms conceived for dosing and metering all kinds of chemical or food products used in the industry for injection under pressure; electric pump units