Beijing Zhong Cheng Quartz Glass Co., Ltd.

products: Glass Capillary Tubes and Rods/Special Shaped Glass Capillary Tubes and Rods/ Quartz Plates/ Quartz Machined Parts/ Quartz Instruments/ Quartz Laser Cavity Filter, Glass Capillary Tube and Rod, Special Shaped Glass Capillary Tube and Rod, Quartz Laser Cavity Filter, Multi hole Laser Flow Tube