The cold air-conditioning year of 2021 is about to come to an end. Affected by the increase in raw material prices and energy efficiency levels, the average price of air-conditioning products has increased significantly in the first half of the year.…
How serious are fertility problems today? People don't want to give birth,can't afford it, and can't give birth that has become the "three mountains". The problem of childbirth is related to the people's livelihood. Whether a country can prosper or n…
GH4049 is a Ni-Co-Cr-based deposition hardening deformation superalloy, the application temperature is lower than 950℃.…
Molecular Sieve 13X (alkali metal silicon aluminate) is a particular type. Its effective aperture in sodium salt forms is 10 angstrom. However, it can adsorb molecules that are smaller than 10 to 10 angstrom. It is suitable for use as catalyst carrie…