18MM 50 Focus Len For Laser Engraver and can be relatively inexpensive

and can be relatively inexpensive

Digital timer and alarm 4

Capable of subsequent processing such as coated by UV film

Pump can stand the acid and alkali

2 The maximum tapping capacity of pneumatic tapping machine is M16

18MM 50 Focus Len For Laser Engraver and can be relatively inexpensiveIntbuying ZnSe Focus Lens for CO2 Laser Engraver Cutter 18mm Dia Cutting Machine FL 50. 8mm ZnSe is used for optical windows, lenses, mirrors, prisms and optical blanks, plates, disks, sheets, slabs particularly for infrared applications. Specification: Type: CO2 Laser Lens Color: Yellow Material: ZnSe Diameter: 18mm Thickness: 2mm Wave Length: 10. 6um Focal Length: 50. 8mm