New multi-functional USB-electron microscopy for laptops 1.New brand 2.Powerful Supplying 3. ... i will reply soon.About us:Shenzhen L&P Technology Co., Ltd Contact person:amy_zhouAdd: No .333,3/F ,Huayun Building ... ,No.101,Futian Shenzhen Guangdong C.N 51803 new usb-electron microscopy