Established in 2005, Shenzhen Longcosmos Technology Co., Ltd. is an energetic and innovative enterprise integrating with developing, designing, manufacturing exporting the created electronics products China. Specializing producing Alcohol Tester, ...

We are a professional manufacture and exporter of consumer electronical products in Shen Zhen, China. Our main include portable DVD player, TFT LCD Monitor,MP3 Mobile phone SIM Card backup machine other products. truly hope to establish business ...