CYS® glass fiber is a registered brand, which registered by Chengdu Chang Yuan Shun Co.,Ltd. We found there was some cheaters' companies use our brand on net, here we remind you only Chengdu Chang Yuan Shun Co.,Lt. is the only company which are legally use this brand, any other companies or person who use this brand CYS® glass fiber would be going to cheat you. Please pay attention!

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CYS glass fiber