Dongtai Ultrasonic Gem Machine Co., Ltd, founded in 1994, is a gemstone machinery company which specialized in the production of ultrasonic punching and carving machine. We provide excellent service, undergoing more than ten years of development, the product sell all over China as well as the foreign market. In the basic of ultrasonic machine, we produce a series of gemstone machine from slicing machine to the polishing machine. There are a series of standard in each step of the producing, they would be checked strictly upon requests to strive for perfection. We listen to customers and business agents' opinions earnestly to improve our products. Regarding the ultrasonic punching and carving machinery, we may carry on the modification immediately according to the customer request.