1,Small Volum 2,Fully Maintenance Free 3,Precise And Deeply Marking Details Jilin Yong-Li Laser Technology Co.,Ltd.(Former name is ... other institutions . We produced series of CO2 laser tubes , laser power supply , laser power meter and laser lens by ourselves . There are three series ... Optical Precision Machinery of the Chinese Academy of Sciences. YM10-1 DPSSL Laser Marking System