5 thoughts on “Gold jewelry becomes soft after heating, how can it make it hard?”
Sonja
Basically, the practice of jewelry stores is to use agate light to make gold jewelry have a certain hardness. But it's not very hard, better than after the fire burns
Basically, the practice of jewelry stores is to use agate light to make gold jewelry have a certain hardness. But it's not very hard, better than after the fire burns
Put it in ice water for a while!
Cooling is naturally harder than heating!
Frozen refrigerator
Wuxi Changan Classic Gold Recycling Price Aunt Floating