高潮时婬乱欧美AAAA片,亚洲一区在线免费观看,一区二区在线免费视频,91无码人妻精品1国产农村老妇,夜色级毛片免费看真人超很

    The storage and conveying system of polyol / isocyanate is used for storing polyol / isocyanate material. Unloading from tanker, feeding, temperature control and conveying all can be done automatically. It greatly reduces the labor intensity and improves the production efficiency. At the same time, it can reduce the waste of raw materials and the cost of storage, and solve environmental problems. It has high economic and social benefits.

 Feeding Device

Unloading Device