Guanhua machine Co., Ltd and Ein diamond tools co., Ltd is a group company which was built in Shuitou stone city, China since 2009. We are designed for providing a one-stop shop for customers in system products of stone processing, ranging from quarrying, cutting, grinding, profiling, and polishing. We have professional and veteran R. D team and P. M team to offer customer the most suitable product, with decades of consistent study and analysis on stone and machinery from different parts of the world.