Q:What are the international certification of doors and windows hardware?

Do not hear anything on the doors and windows hardware certification. But the market has the European standard slot said. Internationally known as roto and so on

Q:Will buy aluminum doors and windows, hardware accessories have any requirements?

It can be said that the quality of aluminum alloy doors and windows hardware accessories on the doors and windows performance has a great impact, is a very important part of the doors and windows, purchase must not be cheap, to try to choose a better brand. In the current market, many of the aluminum alloy doors and windows brand, to the number of Opel doors of the aluminum door used by the kind of hardware accessories quality is the most superior. Their pulley with the market is the best POM material, is the most resistant to the kind of material; their handle, it is applied for a lot of patents, performance has a more prominent advantages. "

Q:Mainly in the application of nanotechnology materials.

PVD is a physical vapor deposition, is currently widely used in the international advanced surface treatment technology. Its working principle is in the vacuum conditions, the use of gas discharge to the gas or the evaporative material part of the ionization or evaporation of substances in the ion bombardment at the same time the evaporation or its reactants deposited on the substrate. It has the characteristics of rapid deposition and surface cleaning, especially with the film adhesion, good winding, can be widely plated and other advantages.

Q:German doors and windows hardware brand which is famous

The highest visibility of the domestic or Nouo (China sales accounted for 80% of the global sales of Nuotuo, domestic products cover all kinds of doors and windows hardware and doors and windows system - Rotoi), the highest international visibility is the grid (the most complete category of hardware, including all kinds Doors and windows hardware, to spring, door closers, electric opener, escape doors, etc., the highest visibility in Germany), Sigelia relative to do the history of windows and doors hardware short, mainly the acquisition of a relatively large window hardware manufacturers - - Obi, so their full name is Sagliya Obe, Srila Gili is itself a top new wind system manufacturer.

Q:Broken bridge aluminum window hardware brand

It is best to use the German Sighelia, the general flat open more than 200, flat on the hanging over 400, ZD is a joint venture Zhengda, but also a lot of fake of the German Nuotuo.

Q:German doors and windows hardware, which are well-known brands?

European doors and windows hardware production technology and technology level is high, especially in Germany, Italy has many international industry well-known brands. Some in the 90s of last century to enter China, some are not known to the people, but in Europe have considerable visibility. The following is mainly based on the influence of the Chinese market in some German doors and windows hardware representative brands. (names not listed in order)

Q: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 ".

Q:Door and window hardware export tax rebate how many points

The central side of the local consumption tax is no longer an incremental return to the 2017 consumption tax rebate as the base, the implementation of fixed return. "Notice" requirements, the Ministry of Finance specifically responsible for the approval of the local export tax rebate on the base and the central consumption tax rebate base and so on.

Q:Noto broken bridge aluminum window hardware how much money a set

Authentic imports Noto hardware 380 to 500 yuan range, because some businesses black heart, so the price is very chaotic, the above price is for reference only, anyway, lower than 360, it is not recommended to buy.

Q:Hardware industry, including a wide range of general hardware, such as bearings, springs, knives, etc .; architectural decoration hardware, such as doors and windows handle, hinge, plumbing valves, etc .; mechanical hardware, such as wrenches, pliers, etc .; And so on, each product production process is different, but overall are based on international practice ISO quality system standards

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.