PSB Singapore akwụkwọ ikike

Ọ bụ iwu na itinye akwụkwọ maka asambodo PSB maka ngwaahịa eletrik.Tupu ngwaahịa a abanye Singapore, a ga-ererịrị ha na Singapore mgbe ụlọ ọrụ nwere ndebanye aha ụtụ na Singapore nwetara asambodo PSB.