... Ji Nan Black A maximum of 6000x3500x600mm Granite machine componentsI,Our granite measuring devices and granite mechanical components are made of high qualityJinan ... Hardness: Above 70HsIII,The "TAI GOLD STONE"brand of granite measuring tools have the following characteristics:1 High precision ... are moving on it.IV,CNC Components made of granite,including base,column,beam and railway,with a maximum ...