2, Zeiss (Zeiss): German brand, known for its high-precision, highly reliable measuring equipment, widely used in industrial measurement, scientific research, medical and other fields.
3, Leuze electronic (Lloyd's Register): German brand, specializing in sensors, measurement and automation technology, providing various types of probes and measurement systems.
4, Hexagon Manufacturing Intelligence (Hexagon Manufacturing Intelligence): Swedish brand, provides a complete measurement and manufacturing intelligence solutions, including high-precision probe.