Door locks

Are installed on the door leaves and door frames of some buildings that usually need to be opened and closed; generally they consist of a lock body (including door and window hardware, operating mechanism and braking mechanism of the lock tongue) as well as a lock panel, handle, and cover. etc. composition.

Hinge

Also known as hinge, is the connection between door and door frame, window and window frame, which allows doors and windows to rotate freely to open and close; hinges are connected by blades and pins, and the types of hinges include ordinary hinges and springs. Hinges and flap hinges.

A door closer

Can automatically close an open door leaf or fix it in a certain position. Some have the function of hinges, and some have fire protection properties; the main varieties include floor springs, door top springs, door slingshots, and door closers. Door handles, door chucks, magnetic door suction heads, etc.

The handle

Is generally installed in the middle of the edge of the window sash, and some are also designed to be a mechanism that connects the door and window hardware with the latch; it is mostly punched and formed from brass, mild steel, zinc alloy, stainless steel and other materials, and the surface is plated with nickel, chromium or zinc .

The support

Is generally installed on the lower edge of the window sash, and some are also designed to be used in conjunction with the hinges. They are often punched and formed from brass, mild steel, zinc alloy, stainless steel and other materials, and the surface is plated with nickel, chromium or zinc.