| 1. | Spiral gate is a powder , grain materials , particulate matter and the small volume of material throughput of the main control equipment widely used in the metallurgy , mining , building materials , food , chemical and other industries control the rapid flow changes or cut off
螺旋闸门是一种粉料、晶粒料、颗粒料及小块物料的流量或输送量的主要控制设备，广泛使用在冶金、矿山、建材、粮食、化工等行业控制流量变化或迅速切断。 |
