LJ6B4-2-Z/CY,LJ6B4-2-Z/EY,LJ6B4-2-Z/DY,LJ6B4-2-J/EZ,LJ6B4-2-J/DZ,LJ6B4-5-J/FZ电感 LJ6B4-2-Z/CY,LJ6B4-2-Z/EY,LJ6B4-2-Z/DY,LJ6B4-2-J/E 无锡市昌林自动化科技有限公司