我們的質量證明書蓋公章方為有效。 

    We'll improve the quality of our products and production efficiency. 

    我們將改進產品質量，提高生產率。 

    They are fully qualified to pass opinions on the quality of this merchandise. 

    他們完全有資格對這種產品的質量發表意見。 

    We would like to have you offer us 100 metric tons, quality same as last. 

    希望您能報給我們100噸質量和上次相同的貨。 

    We find the quality suitable (unsuitable) for our market. 

    產品質量適合（不適合）我們的市場。 

    We always have faith in the quality of your products. 

    對你們產品的質量我們總是很信任。 

    Words and Phrases 

    quality 質量，品質 

    qualitative 質量的 

    qualitatively 在質量上 

    quality clause 品質條款 

    quality certificate 品質證明書 

    quality of export and import commodities 進出口商品質量 

    good merchantable quality 全銷質量 

    to be in conformity with 與...一致 

    transferer 轉讓者

    transferee 受讓者