... B grade Applications:1,Laser pointer2,Industrial laser marker / measuing instrument3,Bar code reader A-laser is specilized in ... encapsulation,testing, producing of the semiconductor laser diode ,and we can do the OEM ... require, we set up nine million square meter level no dust room in China so that has ... 4 million PCS per month.The wavelength for the laser diode have below series: 635nm650 nm,660 nm ...