CaSO4 is an inorganic compound, in the form of white crystals or powder, which is the main component of fluorgypsum. Fluorgypsum is a by-product of hydrogen fluoride produced by the reaction of fluorite and sulfuric acid.
Two plastic steel guardrail board employing Q235 steel plate. The specification is 4320×310×85, the width is 3mm, the model can be divided into ordinary and enhanced, improved for two meters a column, ordinary for four meters a column.