Position: Diamond knowledge
Diamond lathe work affects value- Lathe work is in those who measure its value to be able to have absolutely sex is necessary, when thick auger (semifinished product is gotten) the grade value that decides in cut division hand diamond arises, it is the carat weight with nee...
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- How to extract diamond
- Diamond rich market and formation deposit has two big kinds: One for magma of cliff of 欖 of Gan of horny gravel mica is direct and ejective upper former unripe bed, submit canister form as a result of most cliff body ejective, accordingly,...
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