The Jingda granite series instruments are made of high quality Jinan black granite stone.Due to the high precision,long duration,good stability and corrosion resistance,they have been more and more used in product inspection of modern industry and scientific areas as mechianical space and scientific researches.

We have standard size in stock.and for special size we can make according to your requirements.

Pls send us drawing or detailed requirements for quotation,we will provide you very competitive price with high quality .Your inquiry will be highly appreciated.