，回收华为交换机防火墙，回收华为交换机：
2326TP-EI-AC/DC 2326TP-SI 2318TP-EI-AC/DC 2318TP-SI 2352P-EI-AC/DC
3328TP-EI-AC/DC 3328TP-SI-AC/DC 3352P-SI-AC 3352P-EI-AC-DC
3328TP-EI-24S-AC/DC 5328C-EI 5328C-SI 5328C-EI-24S 5352C-EI 5324TP-SI
2700-09TP-ETP-STP-ETP-SI
2700-26TP-ETP-SP-ETP-PWR-EI(500W电源）
3700-28TP-ETP-STP-EI-DCTP-SI-DC
5700-24TP-SC-EC-SC-EC-SI