传感器温度SITRANS7MC551￥24010去看看德峰工控商行发布了[德峰]温度传感器： SITRANS TS500 7MC551M29F040B70N6DM74LS26N1664551￥3.10去看看永恒电子元器件发布了UT52L1664MC-7 RB551V-30 M29F040B70N6 DM74LS26N
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