Some of our friends need to install some stainless steel security windows, then we have to understand the stainless steel security window calculation formula , stainless steel security window calculation formula which is the standard, and the stainless steel security window calculation formula, what styles are recommended, these stainless steel security Knowledge of the window calculation formula can help our friends, and we also introduce the precautions for stainless steel security windows.
First, the calculation formula of stainless steel security window
The outer tube frame of 19 should be 25 square tube, the center distance of the round tube is controlled at about 125, with the total width of 2600 as an example, 2600 minus the size of the two sides of the riser 50, plus the size of a round tube 19, = 2569. ÷ Center distance 125 to get 20.55 spacing, now according to the dilute calculation 2569 ÷ 20 = 128.45, 128.45 is the center of the tube, the front is added a diameter of 19, the first line is subtracted first Half tube 9.5, with 128.45-9.5=118.95 which is the size of the first line from the second one is 128.45.
Use the computer to directly calculate the formula is (2600-50+19) ÷ 20 to get the center distance 128.45 with (M +) key (memory key) memory and then reduce the half tube 9.5 = 118.95 direct line, press (+ key) and then press ( MR) button (memory removal button) and then press (= button) to get 247.4. This is the second line. Press (=) directly to press once.
Second, stainless steel security window style
1. Iron security net, which can be called iron art, iron flower, etc. It is a kind of mesh security net which is completely bent and welded with iron. It is generally made of iron bars or iron pieces, depending on consumers' love. Come choose. The iron security net is prone to rust, so it is necessary to apply some paint on the surface to prevent it from rusting quickly.
2. Stainless steel security net, a very common kind of anti-theft net, as long as we walk on the street, you can see it everywhere. The stainless steel security net solves the rusting problem of the iron security net. However, there are obvious shortcomings in the artistic styling. Generally, the circular tube and the square pass are intertwined, so people are habitually called the bird cage type anti-theft net.
Third, stainless steel security window notes
1. First of all, what materials should be selected, the market has roughly (iron pipe, stainless steel, color steel), etc., the iron pipe is less ugly, stainless steel is now easy to rust, color steel not only looks good and does not rust.
2. Consider whether each property has requirements for security windows to prevent modification.
3. Air conditioning installation and future maintenance should have a small door for maintenance.
4. Do not like to fix the window, you can do the mobile pull-gate window so that the field of view is wider.
5. Install the security window before the paint is finished, in case the installation damages the wall.
Stainless steel security window calculation formulas are all we have all understood, there are some other styles of this stainless steel security window calculation formula, we can choose, and stainless steel security window notes, we pay more attention to, our decoration home network also has Decoration information, friends continue to pay attention.
Matters concerning the export of Graphite
Over the years, China has been the most * big exporter of Natural Graphite products, in deep processing of graphite products technology leading developed countries, is against the natural graphite "with purchase and adopt a generation of" strategy, and technology blockade, natural graphite as a kind of non-renewable resources, with very good foreground countries limit zhi, its export of primary products, such as export carbon rods, artificial graphite, Graphite Block, pre-baked anode, etc., need to be dealt with the dual-use items.
The price of natural Graphite Powder is determined by three main factors: carbon content, moisture and particle size distribution.
1. The higher the carbon content, the greater the purity of graphite, so the price will rise in the form of the acceleration line (i.e., the higher the purity, the more complex the production process, and the higher the price increases).
The larger the scale, the lower the natural content and the higher the price. Conversely, the smaller the particulate matter, the less content in nature and the higher the price. Therefore, for natural graphite, the price of the normal (i.e., the material at the top of the sieve) is high. In the positive eye, the smaller the number, the bigger the scale and the higher the price. In negative eyes, the larger the number, the smaller the scales, the higher the price, the lower the price of negative items.
Artificial graphite HS codes for 3801100090, customs supervision conditions for export license of dual-use items and technologies, when customs clearance in addition to submit normal trade documents, and shall be submitted to the ministry of commerce issued "export license of dual-use items and technologies".
Materials for application of electronic key for dual-use items:
1. Application of electronic key for approval and approval (seal of enterprise official seal and approval seal)
2. Copy of business license (seal of enterprise)
3. Photocopy of the record registration form of foreign trade operator or a copy of the approval certificate of the foreign-invested enterprise (with the official seal of the enterprise)
4. Applicant's identity card and copy of the company's legal person identity card (seal enterprise seal)
5. Service contract (please refer to the representative office or office)
6. Copy of bank payment receipt (wire transfer voucher, bill)
Information on import and export of dual-use items
1. Trade contract
2. Export (import) packing list
3. Certificate of final user and end-use abroad
Application for export license of sensitive items and technologies of the People's Republic of China, etc.
Graphite Export Packing,Graphite Packaging,Graphite Block Packaging,Graphite Powder Packaging
Fengcheng Ruixing Carbon Products Co., Ltd , http://www.lnfcrxts.com