Laser Welding Machine, Laser Marking Machine, Laser Cleaning Machine manufacturer / supplier in China, offering Factory Price Focusing Lens Focal Length 11.75mm M12 Mount Laser Collimating Lens Glass Optical Collimator Lens, Laser Tube Cutting Machine Ordinary Tube Special Shaped Tube Cutting Supports Customized Metal Tube Cutting Machine, D20*5 F60 D20 F40 D20 F50 D20 F60 D20 F120 D20 F150 Collimation Lens Laser Lens High Power Laser Collimation Lens and so on.