The multifunctional cryptogrammic lock that consists of wireless communication, 24C01A ISD1420,single-chip microcomputer and telephone network is introduced in this paper.

文章介绍了一种采无线通信、24C01A、ISD1420、单片机和电话网组成的多功密码锁的电路设计。

Give priority to develop and manufacture full-face excavator, large-tonnage hydraulic excavator, heavy-tonnage loader, autocrane series, medium and small tonnage and multifunctional loaders.

重点开发生产断面掘进机、大型液压挖掘机、大吨位轮式装载机、系列汽车起重机及静液压式中小吨位和多功装载机。