FJ2T-20NC,FJ2T-20PA,FJ2T-20PB,FJ2T-20PC,FJ2T-20LA,FJ2T-20LB,电感式接近传感器 FJ2T-20NC,FJ2T-20PA,FJ2T-20PB,FJ2T-20PC,FJ2T-20LA, 无锡市昌林自动化科技有限公司