Germany Pauly company is a German professional research, production and sales of grating and special photoelectric products of the company. Pauly products mainly include: PAULY reflector grating, PAULY reflection grating, PAULY diffuse reflection grating, PAULY infrared hot metal detector, weld (mark hole) detector, sheet metal pinhole detector (φ≥0.2mm), crane anti-collision protection grating, detection sheet grating, high temperature grating, etc., It is widely used in the positioning and detection of hot and cold rolled steel plate in steel rolling production line, crane anti-collision protection, paper equipment paper detection, warehousing logistics and other fields.