作者： chinaslate
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Internal quality standards for domestic process boards
Internal quality standards for domestic process boards …
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Internal quality standards for domestic straight floor
Internal quality standards for domestic straight floor:…
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Internal quality management standards for export tiles
Basic quality requirements: 1. Board quality and color …
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Slate classification and comprehensive introduction of ore body
Slate, also called shale, is a type of sedimentary rock…
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Slab stone board and tile product inspection method
Process board: divided into process board board and p…