隧道照明插座 tunnel lighting socket

三相四极明装插座 Three-phase Surface-type Socket-outlet Earthing-contact

工业用明装插座 Surface-type Socket-outlet for Industrial Purposes

单相两极双用明装插座 Single-phase Surface-type Flat-and-round Two-pole Socket-outlet

明装插座 wall ; surface mounted socket

明装插座带开关 exposed socket with switch

明装开关插座 surface mounted switch socket