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　 Shanghai i&d Autowelding Equipment Co., Ltd. is an industrial company with an integration of science, industry and trade, which has been committed to the research and development of automatic welding equipment, production, sales. The products include laser seam tracker, video monitoring system, welding carriage, welding tracker, oscillator, arc length controller, electric control slide, high-precision manual slide and other welding auxiliary equipment. At present, five series of more than 20 products have been formed, which are specialized for automatic welding equipment manufacturers.