нунтаглагч үйлдвэрлэгчид лизенит
Хятад нунтаглагч үйлдвэрлэгчид ба ханган нийлүүлэгчид … 1.Product Introduction In the conventional processing of brittle materials such as silicon carbide (SiC) and glass, it was a major issue to rely on the manual work of craftsmen for processes such as measurement of grindstone tools and wear control.