Is there any third party doing led neon light sign quality test?

Shenzhen Cosun Sign Engineering Co., Ltd. has occupied a wide resin letter market by the advantages of high quality and advanced process. resin letter produced by Cosun is very popular in the market. Our offered COSUN led resin letter is preciously designed to fulfill the requirements of our prestigious clients. With a custom logo or brand name, the product is suitable for brand building. The product features enough durability. The materials of the outsole contain polymers that are infused with sulfur to provide more durability while maintaining the shoe's elasticity. The product has the advantages of strong corrosion and oxidation resistance.

COSUN adheres to the tenet of cultivating corporate culture always. Get info!
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