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I have discussed ... issue with factory today.In terms of Factory will make a sun test for shell.Cut one shell into four pieces.get them in the Sun separately for two days,four days and seven days.According to that ,examine the degree of its fade.If it fades badly, then its necessary to discuss with PD whether to adjust materials. I have asked factory to exam new colors to confirm if it is qualified At the same time,factory will offer examined report to us.

你好， 你们最近的产品品质比以前好了，请继续保持。 Your recent product is much better in quality. Please keep it up. 以上，希望对你有帮助。