High grade Microscope eyepiece focusing set 1. OEM service offered 2. Machining as required 3. High precision for it High grade Microscope Eyepiece Focusing Set 1.This eyepiece convergence set is made of LY(aluminum) raw material,lathing, milling processing etc.2. cover is blacken finishing,3. machining parts of Microscope Chengdu Khons Trading Co., Ltd.--High Precision CNC Machining ...