Detailed is the powder-coating process and principles of steel pipe by static electricity as well as the process of both chemical and mechanicalpretreatment on steel pipe surface.
详细介绍了钢管粉末静电涂装生产工艺和原理以及对钢管表面进行化学、机械的预处理工艺。
2
A new mechanicalpretreatment of straw was reported in this article.
介绍了一种新的秸秆机械预处理方法。
3
The hot metal pretreatment of injecting and mechanical stirring are analyzed, then the "KR" hot metal pretreatment is confirmed to use.