A. sealing material of viscous material, such as sealant to sunshine board should have no damage.

密封材料的粘性物质，如密封胶等对阳光板应无损害。

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A. sealing material of viscous material, such as sealant to sunshine board should have no damage.

密封材料的粘性物质，如密封胶等对阳光板应无损害。

youdao