Sample required: 5 sets of completed products with assembly instruction (if applicable) is recommended.

样品要求：全套样品5套并包括安装说明书（如适用）。

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Sample required: 2 sets of completed products with assembly instruction (if applicable).

样品要求：全套样品2套并包括安装说明书（如适用）。

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Sample required: 3 sets of completed products with assembly instruction (if applicable).

样品要求：全套样品3套并包括安装说明书（如适用）。

youdao

Sample required: 3 sets of completed products with assembly instruction (if applicable).

样品要求：全套样品3套并包括安装说明书（如适用）。

youdao