A dozen yuan worth of styrofoam cost me hundreds of thousands: a self-report of a door and window factory owner
Engineering Everyone knows that styrofoam thingsMarket chaos, From a few dollars to dozens of dollarsAll, can also be doneUse,It’s hard to tell what Such foaming glue is good foaming glue. I just open…
[Glycerin Supply and Purchasing] Glycerin has existed in our bodies for countless thousands of years
Glycerin (glycerin) is a colorless and odorless viscous liquid. It has a sweet taste and can absorb moisture from the air, as well as hydrogen sulfide, hydrogen cyanide and sulfur dioxide. Insoluble i…
[Glycerin supply and procurement] Glycerin has been present in our bodies for countless thousands of years
Glycerin (also known as glycerol) is colorless, odorless and tasteless Sweet, an organic substance that appears as a clear, viscous liquid. It is miscible with water, alcohols, amines and phenols in a…
