女人腿张开让男人桶爽视频下载,国产午夜亚洲精品国产成人小说,韩国三级大全中文字幕网址,国产佗精品一区二区三区

Grain sieve

This product is to test the food particles, impurity rate and sample the rice oil, bran powder content to determine its quality level of a test instrument. It is widely used in the food sector acquisition, storage, processing, storage and research, health, trade and so on.
Pests sieve
This product is to test the food particles, insects of the oil sample to determine its density and insect pests of grain grading standards of a special instrument. It is widely used in the food sector acquisition, storage, processing, storage and research, health, trade and so on.
Corn sieve
This product is a corn pellet quality test, to determine its quality level of one test instrument. It is widely used in the food sector acquisition, storage, processing, storage and research work.
Technical parameters