Pure aluminum products have poor hardness and will be black, but the oxidized alumina products have a great improvement in hardness, no blackening, good wear resistance, and alumina products will not rust.
Stainless steel towel rails with low-grade stainless steel will rust. The higher the chromium content of stainless steel, the less likely it is to rust. The 304 stainless steel has a chromium content of 16%, good stability and strong corrosion resistance, even in long-term humid environments. It will not rust in the middle.
Stainless Steel Angle,Steel Angle,Galvanized L Steel Angle
Fenghua Jade Motor Co., Ltd. , http://www.chinaseamlesssteelpipe.com