for test only - not for sale

中文意思是，僅供測試，非賣品。僅用於測試，不用於銷售

例句

No commercial value，sample only for test， not for sale ( Sample evaluation purpose)沒有市場價值，僅樣品測試的，不銷售的(樣品評估目的)

These items are just for show—they're not for sale.

So， these are gifts for customers， not for sale.