n.坡玛吊椅

POMA is engaged professionally in research and development design of conveyor system and components(plastic Slat band and Modular chains), the design of automation control and the correlate serves. POMA专业从事于物流输送系统及输送配件(塑胶链板、链网)的研发与制作、自动化控制设计与工程安装维修服务。

In the POMA all fountain electrons emitted from the specimen (electron source) on the cylinder's ooaxis will be focused behind the specimen on the axis after travelling through 180 degrees. 其主要特点是:当一次入射束垂直入射于试样表面