What is the price of a small weather station?

What is the price of a small weather station? This is the most frequently asked question in the process of contacting many users with us. In fact, in the face of such problems of users, we often find it difficult to directly answer. It is often necessary to consult the user's applica.....

Granite mining steps and technical requirements

First, granite mining is generally divided into the following steps: For granite mining, the first mining area should be selected according to resource conditions and market demand, and the mining boundary, mine production scale, and mine working system should be determined. Mining is carried out o.....

Know the blue dragonfly--copper sulfate pentahydrate

Copper sulfate pentahydrate, commonly known as blue vitriol, copper vitriol or alum, as a chemical equation CuSO4 · 5H2O, blue crystals. Anhydrous copper sulfate is stable under normal temperature and pressure, does not deliquesce, and gradually weathers in dry air. When heated to 45 ° C, it .....