How much do you know about the purchase points of doors and windows?

1. According to the functions of doors and windows, they are divided into: louver doors and windows, thermal insulation doors, soundproof doors for fire doors, etc.

2. Classification according to the opening method of doors and windows

(1) Swing doors and windows: the doors and windows open inward or outward.

(2) Sliding doors and windows: Doors and windows use horizontal movement for opening and closing.

(3) Folding door: the door leaves can be folded together when opened.

(4) Turning doors and windows: doors and windows are opened and closed in a rotating manner. The turn window includes an upper suspension window, a lower suspension window, a middle suspension window, a vertical turn window, and the like.

(5) Spring door: a door equipped with a spring hinge, which will automatically close after opening.

(6) Other doors: including roller shutter doors, lift doors, flip doors, etc.

3. According to door and window materials, it can be divided into: wooden doors and windows, plastic doors and windows, aluminum alloy doors and windows, steel doors and windows, glass steel doors and windows, reinforced concrete, etc.

4. According to the position of doors and windows: the doors are divided into outer doors and inner doors. The windows are divided into side windows (located on the inner and outer walls) and skylights.

Second, the structure of the door leaf

1. Panel door: a door made of panels. Sturdy and durable, mostly for the door.

2. Plywood door: a door with a light frame in the middle and plywood, fiberboard, etc. on both sides. It is generally an indoor door.

3. Panel door: The door leaf is composed of skeleton and door core board. The defender's core board can be wood board, plywood, hard fiber board, plastic board, glass, etc. When the door core plate is glass, it is a glass door. When the door core is yarn or louver, it is screen door or louver. You can also use glass, yarn or hundred pages according to your needs, such as the combination of upper glass and lower hundred pages.

Third, the purchase of plastic steel doors and windows:

Plastic-steel doors and windows are a new generation of door and window materials. Because of their high wind pressure strength, good airtightness and watertightness, small air and rain penetration, low heat transfer coefficient, heat preservation and energy saving, sound insulation and heat insulation, and not easy to age, they are rapidly replacing Steel windows, aluminum alloy windows.

1. Manufacture of plastic steel doors and windows. Plastic-steel doors and windows are generally manufactured in the factory with special cutting and welding equipment for plastic-steel doors and windows. They are semi-automatic and automated production, and the quality can be guaranteed.

2. The structure of plastic steel doors and windows. The plastic-steel doors and windows are made of specially hardened polyvinyl chloride (PVC) plastic profiles in Western languages, plus off-the-shelf hardware. The profile is a porous cavity, and the main cavity is lined with steel made of cold rolled steel plates to improve the strength of plastic steel doors and windows. The wall thickness of the profile should be above 2.5 mm.

Denso Parts

General wearing parts for Denso including filter, orifice plate. Besides, there is also injector and pump assembly, nozzle, valve, shim, spacer, washer repair kit etc.


Original Denso and favorable China made parts are both available.


Each part has undergone strict quality inspection and is properly packaged to ensure safe transportation.

Denso Parts,Denso Fuel Injectors,Denso Spare Parts,Denso Injector Plug

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