... compliant 2,change color from blue to pink 3,quick delivery in 24hours 4,Dia:1mm 1, Brief:humidity indicator labels ( ... indicator labels1), Lead-free ROHs compliant2), reversible color change,3), quick delivery within 24 hours4) , OEM allowed5), cocl2, coblat free ... services allowed ( customer size, shape and printings can be done)4, ApplicationPrinted Circuit Board,PCB, LED, SMD LED, IC, electronic ...