Mixing barrel is generally made of stainless steel, if user has special materialdemand, it should be provided which is attached with the order.
混料筒一般采用不锈钢制造，用户如需特殊材质在定货时提出。
2
The retired stuff at colleges and universities is a special group, among them, there are abundant wisdom resources. They have special spiritual and materialdemand.
高校离退休人员是一个特殊的群体，在他们当中蕴藏着丰富的智力资源，同时也有特殊的精神和物质需求。
3
In the light of present problems existed power utility check, use GPRS communication technology and information disposal technology to solve effectively user materialdemand for the checkers.