In the decoration, different types of units may use windows that are not used. On the market, in addition to the profiles, the windows have many different ways of opening windows, such as flat windows, sliding windows, upper hanging windows, and lower hanging windows. These are the most common windowing methods. They all have advantages and disadvantages. The choice of windows depends on what is best for them.
Brand Shop: Jiangke Door & Sun Room Gold Ship Door & Sun Room & Sun Room
1, the top and bottom hanging windows save space
The upper hanging window is a window in which the hinge or hinge is mounted on the upper side of the window and opens inward or outward; the lower hanging window is a window in which the hinge or the hinge is mounted on the lower side of the window and opens inward or outward. The top hung window and the bottom hung window are a new form of window development based on the flat window.
Advantages: There is a hinge on the top and bottom hanging windows. The window can only open a gap of about ten centimeters. People cannot come in from the outside, which is especially suitable for use when no one is at home. It can be ventilated and can guarantee safety. The opening fan occupies less space for use, and is often used where the installation position of windows, such as kitchens and bathrooms, is limited.
Disadvantages: Due to the small openable gap, the ventilation performance is weak.
Brand Shop: Jiaji Doors & Sun Rooms   Genesis doors and sun room
2, sliding window economic and practical
The opening and closing of the window sash is achieved through the external force acting on the sash to drive the roller to be rolled. It is a single-, double-, or multiple-door sliding door. Sliding windows are economical and practical doors and windows. They are mostly used in indoor environments such as balconies, kitchens, bathrooms, and stairwells.
Advantages: Simple and beautiful sliding window, large window, open field, high lighting rate. The window position and vent can be relatively freely selected and does not occupy the interior space when opened. Open in one plane for easy installation and use of screens, curtains.
Disadvantages: The two windows cannot be opened at the same time. At most, they can only be opened half and the ventilation is relatively poor.
Brand Store: Meiju Doors & Sun Rooms   Golden Elephant Doors and Sun Rooms
3, casement window sealing performance
The casement window is a high-grade type door and window, which means the hinge or hinge is installed on the side of the door and window, open inwards or outwards. It can be installed double or triple hollow glass, its sealing performance is very good.
Advantages: flexible opening method, large opening area, good ventilation performance. In the window design can be used on a large fixed small open form, good lighting performance, beautiful atmosphere. The sealing performance, sound insulation performance, heat preservation performance and impermeability of the casement window are very good, the wiping window is convenient, and the open space does not take up extra space when opened.
Disadvantages: The internal windows occupy internal space, and they are easily damaged. It is inconvenient to use curtains when opening the windows. For example, the quality of the windows may not be closed, but it may also cause rain; the use of screens for the external casement windows is inconvenient, and opening takes up outside the walls. A piece of space is easy to damage or even hurt when the wind blows, and there may be a phenomenon of air leakage.
Link: No "Appearance Association" Glass doors need to re-quality
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I beam has different sizes and very versatile, which is widely used for building construction, bridge, vehicle, bearing bracket, machine etc. 30# I beam with thick flange is specialized in electric hoist crane which is easy for electric hoist crane to operate.
The I-beam is mainly divided into three types: ordinary I-beam, light I-beam and low alloy light i-beam.
Ordinary I-beam, light steel flange is a variable cross-section of the thick web, the external thin; H steel: HW HM HN HEA HEB HEM, etc. the flange is a constant cross-section
Application scope
Because of the relatively high and narrow section size, the ordinary steel beam and the light steel beam have a large difference in the moment of inertia of the two main sleeves. The use of I-beam should be selected according to the requirements of the design drawings.
I Beam
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