Stainless Steel Handle

How do stainless steel handle manufacturers distinguish the quality of their products?

Stainless steel handle manufacturers specialize in the production of various different handles, handles are still very common in our lives, and the application range of handles is also very wide, such as: doors, windows and other furniture, as well as mechanical chassis products.

There are many types of installation and handles, and the quality is also different, so what aspects can be distinguished?