Sandstone is a sedimentary rock found on the earth’s crust. These sandstones are rich in quarts and/or feldspar which are quite common in the market. Sandstone is commonly used in luxurious homes and buildings due to its natural beauty and elegance. Apart from its stunning features, most (if not, all) laboratories in the world use sandstone floors because of its capability to withstand different types of chemicals.

After performing the quality inspection in the factory, the inspector prepares the draft report on-site and reviews with the factory manager. However a draft report is different from the final report and the buyer should be fully aware of the differences to avoid any misunderstanding of the quality inspection result.
Products made from real leather or imitations, such as PU, are very popular these days and quality issues are quite common. While a different set of tests applies for hides, today's article focuses on the list of the main inspection tests for leather bags.
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