故人西辞黄鹤楼，烟花三月下扬州。

    孤帆远影碧空尽，唯见长江天际流。

The sunshine is just right, and the breeze is not dry. On this warm spring day, the friends of Kemai Testing received an invitation from engineers from Yangzhou Sinopec Research Institute to provide professional technical guidance and services for their coal powder metallographic sample preparation products, grinding and polishing sample preparation.


Although the scenery in Yangzhou is beautiful, the customer's needs are more important. Therefore, after discussing with the customer, the engineer from Kemai Testing arrived at Yangzhou Sinopec as agreed.

After understanding the specific needs of the customer, our engineer, Metalworking, personally demonstrated the grinding and polishing of the sample to the customer while explaining the detailed steps to the customer. From rough casting to medium casting, and then to fine casting, we provide customers with very professional sample preparation guidance at every step.

As is well known, metallographic sandpaper is definitely used for grinding and polishing metallographic samples. The original imported QMAXIS silicon carbide metallographic sandpaper from the United States has strong toughness, good water resistance, uniform, dense and sharp distribution of silicon carbide particles, and high removal rate. With its grinding of metallographic samples, the surface scratch is small, and the material surface layer and deformation layer are quickly removed. The grinding effect is good, which is conducive to subsequent polishing processes and effectively shortens the sample preparation time.


The engineers responsible for pulse detection provided customers with very professional sample preparation guidance, successfully solving a series of issues that customers encountered when using coal powder metallographic sample preparation products, and received unanimous recognition and praise from customers. We are professional in guiding metallographic sample making, and we are serious in providing good service to customers!