Is the welded welded welded welding point of the welding necklace ring
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Is the welded welded welded welding point of the welding necklace ring
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Welded welds are divided into three types: high welding, medium welding and low welding, and the gold content is 940 ‰, 920 ‰, and 840 ‰, respectively. Foot gold and thousands of gold jewelry generally use welds with gold content of more than 90 % to ensure the goldenness of the jewelry. Its welded proportion is about 0.2 %. The content of welded in other K gold jewelry is slightly higher, but it will not exceed 8 %.
In addition to gold, add elements such as tin, copper, etc., this depends on the specific situation