Barrel and container pumps, with electrical or compressed-air motor, even explosion proofed, for transferring neutral, corrosive, thin, viscous, flammable or inflammable liquids. High viscosity liquid pumps. Hygienics- and food pumps. Eccentric worm-drive pumps. Vertical centrifugal immersion pumps. Compressed-air diaphragm pumps. Liquid meters with electronic digital display including data transfer and processing. Mixers and Accessories.