Which brand of flashlight is better for jade identification?

This is more complicated. There are four kinds of jewelry flashlights.

Purple light, 365 and 395 nm wavelength, Andy photoelectric is good.

White light: high color reproduction, but not very strong penetration. Use imported LED light beads, Andy's or Sunshine's.

Yellow light: The color has a certain deviation, but it has strong penetration and is suitable for the original stone. You need to buy a slightly better xenon lamp with high lumen.

I would like to ask the benefits of esterification with succinic acid, such as artesunate, why do you choose to marry succinic acid?

How to use Idesign jewelry cloud design in wechat business?

Which authority is the gia or grs certificate?

Experience and skills of making money and upgrading Xuanwu

Longgang can take a bus to Pinghu there.

How about the quality of Belle women's sandals? What are the most fashionable high-heeled sandals of Belle brand?

Conan Kidd details

Is the Emerald of Enshi Lan Mei Cultural City true?

Which is better for warlocks to play with enchantments or jewels? Reason ~

What are the advantages of exhibition planning and design?