Porcelain is mainly used for internal door knobs and is a very practical and low maintenance material.
Materials used in door handle.
While brass remains the most common type of metal used for door knobs stainless steel and plastic have grown increasingly popular and cheaper as a material choice and that may be bad news for cutting back on the spread of germs.
This allows the whole hand to grab instead of only your fingertips.
As a material for door handles stainless steel is thus best applied to heavily used doors particularly those in public buildings such as the public authorities hospitals on ships in motorway.
Door handles have been in existence for at least 5000 years and its design has evolved since with more advanced.
Egg shaped door knobs are the easiest for most people to use.
It is much more comfortable to open a drawer using a pull.
The most common types of door handle are the lever handle and the doorknob.
Doorknobs have been made of many materials including wood ceramic glass plastic and different types of metal.
It can be plain white cream or black or combined with gold lines or brass chrome and bronze fittings.
Examples include brass white porcelain brown mineral cut glass wood and victorian bronze.
Although not as popular porcelain door handles are available in many different colours.
Brass is one of the most popular materials because of its excellent resistance to rust.
The average doorknob is 2 25 in 5 715 cm in diameter.