Pure white quartz Final Quality Control inspection in huangshi wuhan chengdu jiajiang city

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Pure white quartz Final Quality Control inspection in huangshi wuhan chengdu jiajiang city sampling

1.Appearance
2.Quantity check
3.Color compared
4.Size check
5.Weight check

Pure white quartz Final Quality Control inspection in huangshi wuhan chengdu jiajiang city workmanship check

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