[China Aluminum Industry Network] Closer to the report The aluminum alloy doors and windows market has grown, and many buildings have aluminum alloy doors and windows, so learning to distinguish between good and bad aluminum alloy materials has become the basic knowledge of consumers. How to determine the advantages of aluminum doors and windows, both indoor aluminum doors (including the partition door) or aluminum windows, decorative home owners to buy these products must pay attention to the following points:
Front: The use of material aluminum windows usually consists of three main aspects: aluminum alloys, glass, and hardware. When the owner buys a product, they usually pay more attention to the thickness of aluminum and glass. The hardware requirements are not very high and they are not comprehensive. In fact, the aluminum alloy doors and windows required by the state must have a standard. The use of high-quality aluminum alloy doors and windows, its thickness, strength and oxide film in line with national standards, such as the relevant provisions of the state regulations: the thickness of aluminum alloy doors and windows should not be less than 1.2 mm, the oxide film thickness of 10 microns or less. Tempered glass than ordinary glass, doors and windows if you consider the safety and durability, stainless steel quality hardware (such as screws, hinges, processing, etc.) than aluminum parts and pulleys must choose the preferred polyformaldehyde product material because these products are more High strength and good wear resistance, the use of smooth, easy to bad. You know, damaged doors and windows usually start with door and window accessories!
Second: After processing the data, the next step is to process the doors and windows. The technical content of aluminum alloy doors and windows is not high, the degree of mechanization is not high. Most of the current still rely on the installation of manual operation, which requires the operator to have a good sense of product quality. It is very important for operators to raise the level of product and product awareness during the production process. High-quality aluminum alloy doors and windows, fine processing, tangent smooth, consistent point of view (usually the main frame material is 45 degrees or 90 degrees), there should be no obvious gap in the splicing process, good sealing performance, smooth switch. Low-grade aluminum alloy doors and windows, especially the failure of aluminum products processing outside the window, will have the nature of the seal, not just the leakage of air leakage. In the strong wind and large external force, the glass will break, flow phenomenon, resulting in property damage or Injury phenomenon.
Third: The owner buys the appearance of the aluminum window product, usually only pay attention to the appearance of the product and the decorative glass surface pattern, often underestimate the composite film of aluminum doors and windows, the composite film is dyed by the artificial pigment oxidation resistance, corrosion resistance, with very High gloss, but there are some fire effects, so buy more aluminum window products are more similar products. Artistically different, different Glazier owners are based on their preferences and choices.
Fourth: price level aluminum doors and windows with high prices, low prices have a direct relationship, but the overall performance of aluminum doors and windows at the same time the price is relatively stable, in general, the price is low quality and high quality aluminum alloy aluminum window products are usually Above 30%, low-grade aluminum alloy doors and windows with a lot of impurities of extruded aluminum extrusion aluminum, some are used aluminum wall thickness of only 0.6 - 0.8mm, both from the tensile strength and yield is significantly lower The state stipulates that such aluminum alloy doors and windows, especially aluminum windows, are very safe and outdoors so that owners do not buy products of high quality and low price immediately and Others despise their own personal safety.
Fifth: The performance of aluminum doors and windows performance difference, the use of focus is different, but usually used to consider the following aspects: Strength, mainly reflected in the aluminum doors and windows profiles, his election materials can withstand high pressure, air tightness Mainly reflected in the window structure, the internal fan of the doors and windows, the frame structure is tense, the aluminum window is tightly covered by the outdoor floor, the watertightness, the presence of the main water to assess the aluminum doors and windows, leakage phenomenon; noise nature, mainly depends on the insulating glass Acoustic noise and other special rubber seal structure and opening and closing force, heat resistance, durability guide wheel, durability of closing nylon open doors and windows and durability in other areas.
Medicine Raw Material is related pharmaceutical industry. We mainly supply two items, one is Sulfanilic Acid, another is Formic Acid, with our high and stable quality, can produce high and stable quality of bulk pharmacetuical chemicals.
Pharmaceutical raw materials encompass elements that are required to manufacture a variety of different drugs. These materials are derived and extracted from sources that could be natural or synthetic. Every pharmaceutical is made up of active ingredients .
Pharmaceutical industry has a lot of constraints and specialties which make it stand on a completely different scale than any other industries. Being closely related to the medical field and also complementary to it, the pharmaceutical industry needs utmost care and precision in each and every aspect of the field ranging from collecting the raw materials to getting the final product ready for supply in the market. ï‚ž Let us get into a few details about the pharmaceutical raw materials and find out some important and interesting facts about them.
We mainly supply Sulfanilic acid & Formic Acid , which are used as raw material for Pharmaceutical industry.
Medicine Raw Material,Formic Acid
SJZ Chenghui chemical co ltd , http://www.chenghuichemicals.com