It is the matters of the stone material quality.

这一点应当是石材的质量问题。

As the material quality of a product should be included in the structure.

作为一个产品的物质质量应该包括结构。

Improved material quality, advanced technology and practical enhancement.

改进后的产品材质加强、技术先进、实用性增强。

Moisture is the important index that monitors the solid material quality.

水分是固体物料质量检测的重要指标。

Go to supplier site to solve incoming material quality problem if necessary.

必要时，去供应商现场，解决来料的质量问题；