Dear Sir/Madam, I'm looking for products with the following specifications: Industry: Engine Application description: Measuring the relative displacement of the pneumatic cylinder device, by obtaining the displacement of the plug rod, the components can be simplified, the space efficiency can be improved, the convenience and practicability in manufacturing and assembly are more convenient, and the efficiency and life of the engine are also ensured. Requirements: metal surface, accuracy 0.2mm, range 400mm Show More