国产成人精品无码播放_老司机午夜福利视频_成人区人妻精品一区二区不卡_色一乱一伦一图一区二区精品

Features:

1.Whole sealing;
2.No dust;
3.Continuous working;
4.Rapidly starting;
5.Easy operation. 

Applications:It is suitable for the powder raw material conveying, such as silicate industry, ceramic, frit,

sodium silicate,glass,cement,refractory material,it was used to charge the raw material into the furnace.