SN74LS00D
SN74LS00DB
SN74LS00DBE4
SN74LS00DBG4
SN74LS00DBR
SN74LS00DBRE4
SN74LS00DBRG4
SN74LS00DE4
SN74LS00DG4
SN74LS00DR
0755-83867989
19129491934(手机优先微信同号)