[电] chemically reduced printed chicuit

huà xué huán yuán yìn shuā diàn lù ㄏㄨㄚˋ ㄒㄩㄝˊ ㄏㄨㄢˊ ㄩㄢˊ ㄧㄣˋ ㄕㄨㄚ ㄉㄧㄢˋ ㄌㄨˋ