SN74HCT02DR
SN74HCT02DR2
SN74HCT02DRE4
SN74HCT02DRG4
SN74HCT02DT
SN74HCT02DTE4
SN74HCT02DTG4
SN74HCT02N
SN74HCT02NE4
SN74HCT02NS
19129491934(手机优先微信同号)