套制
1.It is made of excellent high poly-mer and other materials better holeing perfprmance.It can be decreased the sleeve difference to increace, The tight sternght and prevent cots from separating j in bearing.
2.The article introduces acid making process with off- gas in Guixi Smelter and summarizes the actual production of two sets of acid making systems after the commissioning of phase Ⅲ expansion project of Guixi Smelter.
3.Sulfiban and FRC process desulphurization technologies were adopted in Phase II and III Projects of Bao Steel. Due to different feedstocks used for acid production, the processes, equipment and production conditions of both acid production plants are compared in this paper.
