The goods are available in different qualities.

　　此货有多种不同的质量可供。

　　Nothing wrong will happen, so long as the quality of your article is good.

　　只要商品质量可靠，就不会发生差错。

　　If the quality of your products is satisfactory, we may place regular orders.

　　如果你们产品的质量使我们满意，我们将不断订货。

　　If the quality of your initial shipment is found satisfactory, large repeats will follow.

　　如果贵方第一批运来的货令人满意，随后将有大批续订。

　　There is no marked qualitative difference between the two.

　　两者在质量上无显著差异。

　　We sincerely hope the quality are in conformity with the contract stipulations.

　　我们真诚希望质量与合同规定相符。

　　As long as the quality is good, it hardly matters if the price is a little bit higher.

　　只要能保证质量，售价高点都无所谓。

　　Prices are fixed according to their quality, aren’t they?

　　价格按质量的好坏而定，对吗?

　　The transferee must see to it that the quality of the product is maintained.

　　接受转让一方要负责保持产品的质量。

　　Our Certificate of Quality is made valid by means of the official seal.

　　我们的质量证明书盖公章方为有效。

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

　　我们将改进产品质量，提高生产率。

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（实习编辑：高奕飞）