1. Stainless steel door flower: it is the most common in the market, with a slightly lower price, but with a single color, it is easy to rust. Although 304 materials are available, the price is too high, and most accessories are also easy to rust. 2. Gold plated door flower: it is made of stainless steel door flower in secondary processing, through electrophoresis and titanium plating, and its color is relatively simple. Moreover, due to the poor coloring ability of stainless steel, titanium gold is easy to fade and peel, and dark spots can often be seen. 3. Titanium aluminum alloy door flower: it is finished by titanium aluminum alloy using electrostatic spraying, anodic oxidation, electrophoretic painting, fluorocarbon spraying and other coloring technologies, and can also be coated in secondary oxidation. Because aluminum alloy is not easy to be corroded and faded, and has anti-theft performance, colorful has become the treasure of door flowers. 4. Iron forging door flower: generally, iron craftsmen bend the door flower with steel bars according to a certain shape, and then conduct rust prevention treatment.