cold feed
6.The main drive actuating parts of LD-120 five-high tube cold rolling mills include the main motor, belt driving system, rotary feed-in case, intermediate bed and main driving system.
8.Sencond,only pregnant ewe was used to study the influences of composite feed for resisting cold stress on the glucose,carbon dioxide combining power,ions , enzymes and hormones in grazing + supplementary feeding,in order to explore the functional machanism of composite feed for resisting cold stress.

