Core Viewpoint - Duople (301528) is a high-tech enterprise specializing in the research, development, production, and sales of non-destructive testing equipment, providing professional solutions for industrial non-destructive testing [1] Group 1: Company Overview - The company offers a comprehensive range of products including industrial non-destructive testing equipment, ultrasonic transducers, and other supporting components [1] - Duople has established a full-chain business system that includes ultrasonic transducers, scanning devices, various types of testing instruments, portable ultrasonic phased array testing equipment, and automated testing systems [1] - The company covers applications across various niche fields, providing solutions and training services [1]