Core Viewpoint - The company, Duople, is a leading provider of ultrasonic phased array testing equipment in China, focusing on non-destructive testing solutions across various industries, including special equipment, energy, aerospace, and third-party testing institutions [2]. Group 1: Company Overview - Duople has evolved from a manufacturer of ultrasonic probes to a specialized provider of industrial non-destructive testing equipment and solutions [2]. - The company has established a strong customer base in sectors such as special equipment, rail transportation, energy, metallurgy, aerospace, nuclear power, third-party testing institutions, and research institutions [2]. Group 2: Product Applications - The company's products for metal detection are designed to identify potential defects in metals, such as voids, slag inclusions, delaminations, and cracks, and are widely applicable to metal substrates like castings and forgings [2]. - In the oil and petrochemical sector, Duople has developed adjustable curvature phased array probes and automatic detection devices for pipeline corrosion, fulfilling various detection needs including oil pipeline corrosion and in-service inspections [2]. Group 3: Market Activity - As of October 22, 2025, Duople's stock closed at 59.9 yuan, down 2.2%, with a turnover rate of 1.9% and a trading volume of 6,047 hands, amounting to a transaction value of 36.4572 million yuan [1]. - On the same day, the net outflow of main funds was 387.25 thousand yuan, while retail investors saw a net inflow of 703.65 thousand yuan [4].