When did the gold four nines come out?
1956。 49 gold is gold with a gold content equal to or greater than 999.9‰, and the stamp is 9999 gold. Four nines of gold was founded by Chow Tai Fook Company on 1956, and it was quickly recognized by consumers. Chow Tai Fook is the largest jewelry company listed in Hong Kong, specializing in Chow Tai Fook brand jewelry, jade and gold ornaments. It is a comprehensive enterprise integrating raw material procurement, production design and retail services. It is the most famous in China.