Construction steps of foam concrete
Before construction, ensure that all kinds of instruments used during construction can operate normally, check their status and break the work, and the materials must be in place.…
Before construction, ensure that all kinds of instruments used during construction can operate normally, check their status and break the work, and the materials must be in place.…
Various crystal forms of alumina (α, β, γ, δ, θ, etc.) have been found, among which γ-Al2O3 is also called active alumina.…
From June 1 ! major companies increase delivery prices With all efforts to suppress the price increase, although some of the skyrocketing raw materials have been corrected, there are still many chemical raw materials that are hard to return on the wa…