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。

Words and Phrases

good quality 好质量

fine quality 优质

better quality 较好质量

high quality 高质量

fair quality 尚好的质量