Jinan Nano Granite Precision Machinery Co., Ltd is professional to manufacture natural granite, mineral casting and machinery parts. NANO cover a vast area of 40000 including the workshop 5000, the workshop with constant temperature and inspection workshop 1200 etc. and has high-precision surface-grinding machineCNC machine center for fragile material, large polishing machine etc with more than 20sets. We also have the advanced electron detecting system to control our parts quality well.