In the process of metallographic specimen preparation, specimen polishing is a major process, after grinding the specimen, after polishing on the polishing machine, you can get a bright surface like a mirror, PG-1 polishing machine is the collection of many aspects of the views of the user and the requirements of the design of the machine, which has the advantages of smooth transmission, low noise, easy to operate and maintain, etc., the machine's polishing disk diameter and transfer power are greater than similar products in China, can be more suitable for the polishing requirements of more materials, is the ideal equipment for specimen polishing. The diameter of polishing disk and power transmission of this machine are larger than the similar products in China, which can be suitable for more material polishing requirements, and it is the ideal equipment for specimen polishing.