It showed that a fast cooling after drawing was of benefit to dimensional stability, straightness, environmental stress cracking resistance, and strength of the drawn tubes.
The padded urethane cabinet top has a dished compartment for safe placement of test tubes and other blood drawing supplies.
填补乙烷基储存柜顶部带有一个用于安全存放测试试管和其他抽血装置的隔间。
3
Technical properties of capillary tubes for glass thermometers are given and a special recuperative tank furnace for vertically drawing these tubes is described.