retentivity tester10+ factories verified

Haida established in 2004 in Dongguan City, where is the "silicon valley" of world manufacturing industry. It is a certified national high-tech enterprise engaged in design, research and development, production, sales, calibration and after-sale service of test equipment, such as paper&packaging test equipment, Furniture test equipment, material mechanics test equipment, optical measurement equipment, environmental reliability testing equipment etc. With the persistent efforts of all staff, Haida owned 4 factories with total 60, 000 square meters, 15 branch offices covers South China, North China, East China, Central China and Northwest China, as well over 20 overseas after-sales service sites covers Southeast Asia, Europe, North America and the Middle East with over 28, 000 customers.

Paratronix Instruments Co., Ltd. is a high-tech enterprise specializing in packaging testing theory research and testing hardware development with independent intellectual property rights. Products are widely used in quality inspection and drug inspection institutions, printing, packaging, medicine, daily chemical, scientific research institutions, food, medicine, chemical, new energy, new materials and other fields.

Changzhou United Win Pack Co., Ltd is a professional manufacturing complete set of plastic woven packaging production line, such as the adhesive tape making machine, tape extrusion line, circular loom machine, extrusion coating lamination machine, flexo printing machine, automatic cutting&sewing machine and so on. We has been granted with ISO9001 quality assurance system of Chinese Quality Certification Center for lmport and Export Commodities.

Uby Industrial Co., Ltd., which has become an important manufacturer of environmentally friendly test chambers, is a modernization high-tech corporation, specializing in the design and manufacture of environmental and mechanical testing equipment.

About Us

YouBi Test Equipment Co., Ltd. is a professional manufacturer specializing in a full range of environmental simulation test equipment. Our production base is strategically located in Dongguan, China's renowned manufacturing hub. We are committed to expanding our global marketing network and refining our after-sales service system, both of which have earned high recognition from customers worldwide. A majority of the core components of our products are sourced from well-known suppliers in Japan, Germany, Taiwan, and other regions, ensuring premium quality at every step. Equipped with advanced production facilities and backed by strong technical expertise, we have forged long-term partnerships with R&D institutions in Beijing, Shanghai, and overseas markets. By integrating cutting-edge technologies from these collaborations, we consistently drive the R&D and innovation of new products to meet evolving market demands.

Tophung strategic cooperation with Germany Cadis, and on going technical exchange.

Dongguan ZhongLi Instrument Technology Co., Ltd. Was established in 2014. Nestled in Dongguan, Guangdong province, a region renowned for its vibrant manufacturing and technological innovation, our company has thrived in this dynamic environment.

We are professional manufacturer & supplier specialized in Civil Engineering & Material testing equipments since 2003. Located in Wuxi, with more than 20000 square meters building area. Dare to try leaders, modern workshop and fabricating equipments, professional & dedicated R&D team, thus make us the most professional company in this industry.

Suzhou Qiantong Instrument Equipment Co., Ltd is a well-known company specializing in the manufacturing and sale of high-end testing machines and laboratory equipment.

Keraf group was founded in 2014 under the exclusive and strategic mandate of GrafTech® , a worldrenowned graphite brand with a history of more than 130 years, to expand the Chinese market. Our company is located in the complete industrial chain, full competition, with the world factory reputation of Dongguan City, China.