成人做爰免费视频免费看_成人a级高清视频在线观看,成人a大片在线观看,成人a大片高清在线观看,成人av在线播放,一a一级片,一级黄 中国色 片,一级黄 色蝶 片,一级黄色 片生活片

Product Introduction：
SG-3050 high-speed multi-function grinder machine can be used in industry, agriculture, science, medicine and other experiments。Shatter all kinds of plants and animals, skin, wool, meat. Used to determine the three-wheat, rice, beans and other food crops, water, protein, oil sample pulverization。

Features：
1、Speed: ≥ 20000 r / min
2、High efficiency: can be easy and quick work of crushing a large number of samples。
3、Sealing; work has not been crushed material leakage, so that the working environment clean。
4、Small size, lightweight, compact, attractive appearance
5、The blades are very sharp, grinding efficiency is very high

Technical parameters：
Power：350W
Speed Range：0-22000rpm
Maximum capacity：1000ml
Continuous working time：3 minutes
NOTE: not more than the machine work, fair use can extend the life of the machine.