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jewelry wholesale montreal
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wholesale gold jewelry in usa Do the subject want to ask "which is better for light sand technology and 3D hard gold"? 3D hard gold.
1, 3D hard gold is cast from the gold power of 99.93 ~ 99.96, and the golden purity is very high. 3D hard gold is a special process of gold production, which is mainly produced in the 'power cast' model.
2. Increasing the hardness and abrasion resistance of gold, the disadvantages of the existing gold jewelry are large, low, low, low, and lack of new ideas.