Our quality control system includes automatic detection and
manual inspection,we adopting a leading international technology.
We have an experiedced QC team with more than 20 people.
They will carefully detect the stone quality and specification
piece by piece,monitoring every production process until
packaging is complete,to ensure product safety into container
1)Polished degree:95 degree or up.
2)Thickness tolerance:+/-0.5mm
3)Diagonal tolerance:+/-1mm
4)Surface flatness tolerance:+/-0.3mm
5)Adjacent edge verticality tolerance:+/-0.5mm,Precise Cutting by
infrared-ray-cut machine.
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