华为 S1720-52GWR-4P

华为 S1720-28GWR-4X

华为 S1720-28GWR-4P

华为 S1720-10GW-PWR-2P

华为 S1720-10GW-2P

华为 S1730S-L24TR-A

华为 S1730S-L24P-A

华为 S1730S-L24T-A

华为 S1730S-L16P-A

华为 S1730S-L16T-A

华为 S1730S-L8P-A