Helium resources are scarce and the industry has huge development potential
Helium is a non-renewable resource. Due to its good thermal conductivity, good permeability and stable properties, helium can be used in special fields such as aerospace, military industry, and medica…
my country’s potassium salt resources are relatively scarce and the industry concentration is high
Potassium salts refer to potassium-containing minerals, which usually appear as gray, pink, white or brown crystals. They have the characteristics of high melting point, easy moisture absorption, and …
Chinese