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The role of metal in the building
- The most primitive form of window openings from the slightest change in the form of, its role is to withstand harsh outdoor lighting and weather at this time of the window material is very rich, from the goatskin parchment, horn linseed oil to thin paper - in fact, Any kind of translucent, light-permeable material can be used for windows .11 century with the construction of Christian churches and the application of a large number of stained glass, the role of windows to become decorative art to render the mystery of religion. before, "grilles" restricted glass production, are correspondingly small pieces of glass embedded into the contour grid fan of it. so this time window function is to shelter from the storm and prevent thieves invasion. until the 17th century late stage, progress with the times, glass industrial production, changes in the relationship between man and nature, people realized that the windows should be purely functional - not only a simple lighting, scenic, shelter from bad weather in the role. during the British disclosure straight edge of formula casement window (i.e. casement); Dutch invention the sash (i.e., pulling up and down the window), the vertical hanging direction of the slide ledge means controlled from a pulley marks. " The birth of window hardware system ".s
Doors and windows hardware rust with what good
- 1, stainless steel handle and stainless steel Other "hardware" can be used bright detergent scrub, can increase the light.
2, hinges, hanging rounds, casters and other moving parts in the long-term movement may be due to the adhesion of dust and reduce the function, every six months to put one or two drops of lubricants can adhere to its smooth.
3, in particular, pay attention to the direction of rotation of the handle pull, avoid the use of force. Especially to teach children, do not hang in the door handle on the swing, both prone to danger and may be harmful to the inner door.s
Doors and windows hardware accessories which
- Flat window is the handle, fork, connecting rod, slide or hinge, lock block, limit support, there are some plastic pieces or something.
Flat open the door, inside and outside the handle, lock cylinder, lock body, square axis, hinge 3 Oh,s
What are the differences between doors and windows fixtures and doors and windows hardware?
- Door and window hardware: doors and windows normal use of essential hardware, such as hinges, locks, door closers, positioners, door suction, door mirror and so on.s
Nuo Tu doors and windows hardware size ffh and ffb said what the meaning
- FFH represents the vertical distance of the U-slot surface of the upper and lower sides of the sash;s
What are the national standards for the hardware industry?
- The traditional hardware products, also known as "hardware". Refers to the iron, steel, aluminum and other metals through forging, rolling, cutting, and so on the physical processing made of various metal devices. Such as hardware tools, hardware parts, daily hardware, construction hardware and security supplies. Hardware products are mostly the final consumer goods.s
Kennedy doors and windows hardware how much money set?
- Steel a set of 48, more than 5,000 sets of wholesale prices, sold a set of 56
Aluminum alloy window open a set of 67, about three thousand sets, scattered 83 or sos
Aluminum alloy doors and windows hardware accessories key
- This question asked, do not know how to answer. We are selling doors and windows hardware accessories, with a key handle lock, with a key crescent locks
how to lock sim card
- There are a lot of people asking how to unlock the SIM card,but few people ask "How to lock sim card?". How to lock sim card?Before answering this question, let's get...
what is the difference between quartz and granite
- What is the difference between quartz and granite？The quartz stone is made of quartz and resin.The hardness reaches 7 degrees, while the granite is composed of marble powder and ...
Difficulties of Project Management Construction
- As is known to all, project management construction is a vital specialized course of civil engineering major, which consists of several important objectives such as quality, time a...
what is basalt used for
- What are composite doors？Basalt is a kind of high-quality traffic building stone.Especially in the construction of highway, railway, port, airport runway,it is one of the best co...
What are the characteristics of corner protectors for walls?
- Introduction of corner protectors for walls：As the name suggests,corner protectors for walls is used to protect the corner. Corner protection is often neglected by people,when yo...