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Seika Sangyo GmbH is a subsidiary of Seika Corporation, Japan. The company was founded in 1974 and is located in Düsseldorf (Germany). Seika Sangyo is specialized in marketing, distribution and after sales service of high technology industrial products, machinery and other production plant equipment. Through our network of distributors we are able to spread our activities over the whole Europe. We have constantly developed relationships with machinery and technology suppliers and most importantly to our customers in the automotive, construction, machinery and electronics industries.

ATEQ is a global leader in industrial leak and flow testing equipment, offering innovative and reliable solutions to ensure product quality, safety, and compliance. Founded in France in 1975, the company has expanded its presence to over 40 countries, with a strong network of subsidiaries, distributors, and service centers worldwide. ATEQ serves a wide range of industries including automotive, aerospace, medical, electronics, packaging, and consumer goods, supporting both large-scale manufacturers and specialized producers.
The company’s core expertise lies in developing high-performance instruments for leak testing using technologies such as pressure decay, mass flow, and tracer gas methods. In addition to leak testing, ATEQ also provides flow testing equipment, battery testing solutions for electric vehicles, and TPMS (Tire Pressure Monitoring System) tools for the automotive aftermarket. Its testing systems are known for their accuracy, speed, and ease of integration into automated production lines.
With decades of experience and a commitment to innovation, ATEQ customizes solutions to meet the specific needs of each client, ensuring reliable results and enhanced production efficiency. Backed by responsive technical support and global service coverage, ATEQ continues to set industry standards in non-destructive testing technology.