In the last article, we talked about how to distinguish the leakage plate of the mechanism. In this article, we talked about how to distinguish the quality of the leakage plate of the artificial cement.

   If we look at the surface of the artificial cement leakage board, we must look down from the mold, look at the leakage hole and edge of the mold, then look at the surface of the leakage board, look at the surface roughness of the leakage board, indifference, the surface of the artificial board is not as smooth as that of the machine-made board, see whether there are cracks on the surface, whether there are obvious traces of bubbles, and then look at the weight of the cement board Problem, the weight of leakage board sometimes can see whether there is Jerry building.

  Secondly, in terms of raw materials, the grade used for cement is 425, followed by the sand and stone used, the thickness of steel mesh, and the manual plate are separated double-layer steel bars.

  Finally, it's all about technology and tools.