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

他们完全有资格对这种产品的质量发表意见。

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

希望您能报给我们100吨质量和上次相同的货。 

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

产品质量适合（不适合）我们的市场。 

We always have faith in the quality of your products. 

对你们产品的质量我们总是很信任。

This is a quality product. 

这是一种高质量的产品。 

Those overcoats are of good quality and nice colour. 

这批大衣质量高、成色好。 

Our quartz technique is well known in the world, and we believe our watches are of fine quality.
我们的石英技术世界闻名，相信我们生产的手表具有高质量。 

Our price is a little bit higher, but the quality of our products is better. 

虽然价格偏高，但我们的产品质量很好。 

Your goods are superior in quality compared with those of other manufacturers. 

和其他厂商相比，贵方产品质量上乘。 

The equipment are of good quality and very useful. 

这些器械质量好，用处大。 

Our products are very good in quality, and the price is low. 

我们的产品质高价低。 

We have received the goods you send us, the quality is excellent. 

我们已经收到贵处来的货，质量很好。