September 2022
Can platinum diamond ring be built again? What if can you build?
My diamond ring can't get off, I want to break it, I don't know how to calculate the recovery price? Some people say that recycling is not cost -effective, can it be rebuilt?
Photovoltaic connector MC4
There are currently about 777 million sets of connectors installed in China. From a risk perspective, this means that there are at least 777 million risk points that need to be monitored by different plant owners. However, this small component is often overlooked during the design, construction and operation stages of the plant. The reason …
Shenzhen jewelry brand
I want to know which brands of natives in Shenzhen are the best for marriage, and the quality is good and unique.
Dreaming of seeing others buying gold and jade
Dreaming of seeing others buying gold and jade