黑五类 Five Black Categories (a definition of five groups of poorly-behaved people put forward in the 1950s for landlords; rich peasants; counter-revolutionaries; bad elements and rightists) ; Black Five

超五类非屏蔽双绞线 UTP-Unshielded Twisted Pair ; LSZH ; UTP-Unshielded Twi

超五类 CAT ; UTP ; D-Link ; CommScope

第五类 ITEM ; oxidizing substances and organic peroxides ; Inly ; kategoria

供应超五类跳线 FTP SSTP SFTP ; FTP TP SFTP

到五类 Level

超五类网线 amp ; HSYV

五类基本的 lsa

临时五类工作签证 VITEM