LJ5B3-2-Z/CY,LJ5B3-2-Z/EY,LJ5B3-2-Z/DY,LJ5B3-2-J/EZ,LJ5B3-2-J/DZ,电感式接近开关 LJ5B3-2-Z/CY,LJ5B3-2-Z/EY,LJ5B3-2-Z/DY,LJ5B3-2-J/E 无锡市昌林自动化科技有限公司