14 years optical transmitter,optical line terminal equipment,communication equipment experience

What should I do once I receive optical transmitter imperfections?
Please send photos of imperfections to Yantai yunpan international trade Co.,Ltd. immediately. Any details may be attached. We carry out strict quality control throughout the production, from incoming materials to finished products. We promise that the pass rate of optical transmitter is at least 98%.
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YUNPAN has developed rapidly and is a leader in the world lte base station market. YUNPAN's base station control series contains multiple sub-products. Thanks to its modern and elegant housing design, this product is accepted by customers. It functions as an illumination tool as well as an embellishment for the environment. The product is easy to upgrade and migrate. YUNPAN has set up specialized technical department, responsible for the pre-sale, sale and after-sale technical support and service. It is made in compliance with RoHS and WEEE environmental standards.
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We contribute to the natural environment and make the environment of the earth more sustainable and beautiful. We will make a monitor system to control emissions, resources, and waste to track sustainable initiatives.

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