Adopting high quality 'Jinan Qing' naturial material of granite,granite surface plateform is manufacturered by mechanical processing and manual polishing.the main mineral ingredients of granite are pyroxene ,anorthose,less olivine,black mica and less magnetite.Aging through hundreds of millions years,the granite can still retain even character ,stable,high strength and hardness,and can production and measuring works at laboratory.
Hebei Quanyi Machinery Co., Ltd (Hebei True Plate Solutions Co.,Ltd)
Add.: No. 48 Ta'nan Road, Yuhua District, Shijiazhuang, Hebei, China