Astragalus (Huang Qi) is a plant native to Asia. The Chinese name of the herb, huang qi, means "yellow leader", because the root is yellow and it is considered to be one of the most important herbs in traditional Chinese medicine. The part of the plant us
Porous ceramic ball is a new type of support and covering spherical packing made by the shape modification on the basis of the inertia ceramic ball according to the mass transfer effect and medium of the packing.
Cores AmorphousNanocrystalline cores are used for distribution transformers, instrument transformers, current transformers for electronic energy meter, zero-phase sequence current transformers for earth leakage circuit breaker, common mode chokes, power t