CDSEI is a Sino-Japanese joint venture focusing on optical fiber manufacturing. With advanced modern management and continuously technical and equipment support from its shareholder, Sumitomo Electric Industries (SEI), CDSEI has attained the world-leading level in fiber manufacturing and keeps the advanced technology with SEI in sync.
As one of the earliest companies dedicating in optical fiber manufacturing in China, CDSEI has more than 32 years high-quality communication optical fiber manufacturing experience from 1992. High-quality fibers from CDSEI have been widely and stably used in China and around the world.
To be the Global High-quality Optical Fibers Manufacturer and ensuring product quality and user satisfaction is the unremitting pursuit of CDSEI.
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The company has 100 employees. R&d team leading by doctor. Deep research and development capabilities. Strong technical support by SEI.
The professional production lines of optical fiber. Advanced optical fiber detection equipment. An annual production capacity of 7 million core kilometers of optical fiber.
The quality assurance system of CDSEI mainly includes the following aspects：
Customer centered and quality based, establish and implement a quality management system in accordance with the requirements of GB/T19001, establish and improve self-improvement mechanisms based on quality management principles and process methods, and carry out comprehensive quality management.
The quality control methods mainly include：
Evaluation, selection, and control of key raw material suppliers.
Control of key processes.
Finished product warehousing inspection and type testing.
Measurement management of monitoring equipment.
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