【ARTISAN CONTROLS】438USA-4,
【ARTISAN CONTROLS】438-USA-INT,
【ARTISAN CONTROLS】438USAS,
【FACOM】439,
【Keystone Electronics】4390,STANDOFF METRIC HEX M3 THD 5MM
4390 CC,
【Pomona Electronics】4390-0,测试插座 DISC BY MFG 8/01 SOCKET ADAPTER BLK
43900189,