Regulations Governing Exemption from Inspection of Commodities Article 15

For commercial samples or products for exhibition to be imported, that are not for sale and have been granted to be exempted from inspection in accordance with these Regulations, an applicant shall mark or attach the message: “not for sale in accordance with the Commodity Inspection Act” in an obvious place on the body of the commodity.
中文原文 商品免驗辦法第15條
輸入非銷售之商業樣品、展覽品,依本辦法規定准予免驗者,報驗義務人應於免驗商品本體明顯處標示或附加依商品檢驗法規定不得銷售字樣。

English translation for reference only; the Chinese text prevails. Not legal advice.