Influences of Concrete Water Reducer on Different Kinds of Cement (2)
In this article, we will talk about the problems when water reducer meets different kinds of cement and solutions.…
In this article, we will talk about the problems when water reducer meets different kinds of cement and solutions.…
GaN is a semiconductor material of third-generation with a large forbidden-band width. It has superior properties compared to first-generation Si, and second-generation GaAs. GaN devices, due to their high thermal conductivity and large band gaps, c…
GH4049 is a nickel-based superalloy, which is an age-hardening alloy. The corresponding grade is GH49. Its nickel content is about 70%.…
A recent poll in Britain found that public support for sanctions against Russia is falling as fuel and prices rise. The proportion of people willing to accept higher fuel prices as a result of western sanctions against Russia fell 14 percentage poin…