After years of development, China's door and window industry has not yet formed a major brand with national influence. In response to this situation, the person in charge of Dekai Wood said in an interview with the author: "This is actually a special industry. The products of this industry are personalized in terms of appearance, size and function due to the diversity of architecture; The manufacture of doors, windows and curtain walls requires sufficient space, equipment, technology, and manpower; the installation of doors, windows, curtain walls also requires regional expertise and services. These particularities make the company take a different direction when developing, plus the region The difference in culture has resulted in the door industry not forming a national leading brand so far. "
"Capacity" is the bottleneck to achieve industrialization, scale and standardized production
The head of Ymeida Industry stated that monopoly requires three basic conditions: resource monopoly: key resources are owned by an enterprise. The government creates a monopoly: the government gives a few companies the right to exclusively produce a particular product or service. Natural monopoly: Advanced technology or prerequisites make a producer more efficient in controlling product manufacturing costs than a large number of producers.
The monopoly formed in China's door, window and curtain wall industry is more likely to come from "natural monopoly".
Theoretically, a certain amount of furniture, walls and windows equipment business is entirely possible by increasing the "productivity", "monopoly" status is achieved. However, these potential "monopoly" companies are currently investing in factories instead of holding investment. It takes a relatively long period to invest and build factories, which creates conditions for our SMEs to discover and occupy blind spots.
Personalized doors and windows will be the future development opportunities for SMEs
This opportunity first stems from restrictions on product size. It is the inherent personalization of this product that has impacted and resisted the scale advantages of "monopoly" companies. Second, personalized products are much more complex than conventional bulk products in terms of technical performance, production methods, and supporting associations.
Personalized doors and windows will be closely related to the three aspects of glass development, building management system and photovoltaic modules, and should attract the attention of enterprises.
The appearance and application of anti-noise windows, glass photosensitive sunshade windows and solar power windows will put forward higher technical requirements for the manufacturers of personalized doors and windows: from carpenters to manufacturers of high-tech products. function forumhottag_callback (data) {tags = data;} parsetag ();
Bend is one kind of Pipe Fitting.made of carbon steel, stainless steel, alloy steel and other special metal materials as required by its customers.
Bend of complete sets of bending dies is adopted to bend, divided into two kinds of cold heat and hot push technology.Whether what kind of machinery, equipment and pipeline, mostly use bend, mainly used in oil, gas, fluids, etc.
Bend and bend is the most basic difference with the diameter of the pipe and elbow, bend compared with elbow bent pipe is longer, R is 2 times higher than bend, R = 1 to 2 times in which belongs to the elbow in the bending process, can use cold heat bend pipe, made from pipe bending machine bending type directly, one-time can manufacture bend, and need not secondary anti-corrosion, but bend to factory customized, do anti-corrosion, ordering cycle is long.Bend the price must be lower the elbow, but price is lower than the elbow out of many, if not do anticorrosive processing bent pipe is easy to damage, this is, as you know, I also don't say, but its because cheap in some demand is not high engineering use very much.
Elbow manufacturers custom-made, anti-corrosion, ordering cycle is long.Cold bending tube can directly use the pipe direct forming technology in tube bending machine, one-time can be completed, also need not second antiseptic, cold bending pipe construction technology has a oil standard, west-east gas with the enterprise standard.But open area with elbow bent pipe is ok, only consider the cost, cold bending can be bended tube elbow should be roasted, highly cost, of course, is the elbow.Sometimes narrow area must turn the elbow, such as regarding the section of pipeline, because of small bend radius of curvature, generally for the 6 d, and bend for 40 d.Engineering construction site construction site, use the elbow or a bend, not only should consider the price of the elbow and pipe bending quality, but also in where, so choose elbow bend.
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