kajia gold titanium steel bracelet jewelry stainless diamond inlaid jewelry couple buckle for five generations, Black

[about stainless steel]
stainless steel is a very special metal. it is very tough and corrosion-resistant. it will not turn black like silver. it will maintain its own tone all its life at room temperature the melting point of stainless steel is not much different from that of, so it is often used in aerospace military precision parts. 304l and 316l are international standards of stainless steel, with stronger hardness and higher process required. they are the grade of stainless steel stainless