说明

• Feature: New concentration rack with ball bearing Coaxial coarse and positive focusing Diameter of annular ring preserving microscope head: 76mm Diameter of opening for stand publish (arbor): 25 mm/32 mm Working stroke: 50mm Center distance: 156mm One scale of good focusing: 0 mm Rotate one circle to upward thrust or fall: 0 Suit For Microscope: zoom high strength electronic microscope Packing including:1 x Microscope Adjusting Bracket

• 
• 
• 
• 
•