Current position: Home >> Scientific Research >> Patents

一种直观化多功能通用组装管壳式换热器积木教具

Release Time:2019-03-09  Hits:

First Author: 张健

Disigner of the Invention: panyanqiu

Authorization Date: 2009-10-31

Prev One:一种液体物料的冷冻干燥方法

Next One:微波辐射污泥制生物柴油的方法