Filter Tube, also named as tube filter, is made of metal wire
mesh and metal plate mesh. Those meshes are rolled into tube shape in different
size by winding machine. According to the material, it can be classified into
stainless steel tube filter, copper filter tube, black wire cloth tube filter,
galvanized steel filter tubes, aluminum sheet filter tube and so on. According
to the processing technology, it can be classified into woven mesh tube filter,
welded mesh filter tubes, perforated sheet filter tube, expanded metal tube
filter, etc. Among these products, stainless steel tube filter and black wire
cloth tube filter is more popular than other types. And compared with the filter
disc, it often has no metal flange. With accurate filtration rate, tube filter
can filter a large variety of fluids and retain almost any size solids.
Advantage:
Excellent
permeability
Corrosion resistance
High temperature resistance
Outstanding
dirt-holding capacity
Accurate filtration
precision
Easy processing and installing
Easy forming,
painting, polishing, welding and cleaning
Firm structure and
different holes patterns
Use:
Filter tube is widely used in petroleum, chemistry,
metallurgy, machine, medicine, automobile industries for distillation,
absorption, evaporation and filtration processes, so as to eliminate the
impurity and foam mixed in the gas and liquid.
Filtration of air:
air filters, vacuum filters, filtration of corrosive gases, cage ventilation,
etc.
Filtration of
liquid: ceramics polluted water cleaning, beverage, disposal of sewage water,
filtration of corrosive liquids, beer brewing filter, etc.
Filtration of
solid: glass, coal, food processing industry, cosmetics, fluidized beds, etc.
Filtration of oil:
oil refining, hydraulic oil, oilfield pipelines, etc.
Filtration of other
fields: textile industry, insulation industry, automotive industry, chemical
industry, metallurgy, pharmacy, electronic field, etc.
Product Photoes:
Filter Tube,Stainless Steel Perforated Filter Tubes,Stainless Steel Wire Mesh Filter Tube,Stainless Steel Filter Tube Anping Xinzheng Metal Wire Mesh Co., Ltd , https://www.sievingmesh.com
Constrained by various factors, the sales of domestic heavy trucks in 2011 did not continue the hot trend in 2010 and fell in April. According to the China Association of Automobile Manufacturers' Production and Sales News, in April 2011, commercial vehicles produced and sold 378,800 and 409,700 vehicles, a decrease of 14.69% and 14.81% from the previous quarter and a year-on-year decrease of 10.10% and 7.84% respectively.
Among trucks, heavy goods vehicles (including non-complete vehicles and semi-trailer tractors) decreased by 8.33%, light trucks decreased by 8.64%, minivans decreased by 18.1%, and only medium-sized trucks increased by 7.77%. Passenger cars sold 1.09% in April. Among them, large passenger cars (including non-complete vehicles) decreased by 9.56%, medium-sized passenger cars decreased by 18.43%, and only light passenger cars increased by 6.08%. This is the first time that commercial vehicles have experienced negative sales growth since the financial crisis.
The negative growth in sales volume confirms that some industry analysts at the beginning of the year have judged the sales volume of commercial vehicles to decline slightly. However, many truck companies that have entered the industry have already made headway: The high-growth commercial vehicle market in 2010 was just short. The decline in sales during the months that followed was a cause for concern. In view of this, the decline in sales volume is inevitable, and the kind of high-speed growth scenario in 2010 is unlikely to continue. This is a more consistent response when it comes to representatives of domestic truck companies and industry analysts.
Investment Drives Demand for Commercial Vehicles in 2010
To understand the reasons for the decline in commercial vehicles in April 2011, it is necessary to make a careful analysis of the popular situation in the commercial vehicle market in 2010. Due to the impact of the financial crisis, international exports have decreased. When the domestic consumer market has not picked up the burden of stimulating economic development, in order to stabilize the society and increase employment, China has invested 4 trillion yuan to stimulate economic growth, and has finally driven a large amount of social capital investment. Investment in infrastructure construction, such as real estate, iron (road) road (road) machine (field) construction, thereby driving the demand for commercial vehicles, dump trucks, tractor-trailers, construction machinery, etc. have a substantial increase.
In 2010, civil aviation infrastructure investment reached 250 billion yuan, and investment in high-speed rail construction reached 700 billion yuan. Real estate construction is also in full swing and house prices have risen sharply. The state's policies on the introduction of cars to the countryside and trade-in replacements will continue to be implemented. In such a hot situation, many enterprises have been producing three shifts since the second half of 2009 and are still in short supply.
According to data from the China Association of Automobile Manufacturers, China’s heavy-duty truck sales exceeded 1 million in 2010, an increase of 59.93% year-on-year, and light trucks reached 1.5998 million, an increase of 26.13% year-on-year. Faced with this situation, many companies have expanded their production capacity, and some companies have entered this market, such as Jirui combined trucks, Universiade heavy trucks and other companies, and some agricultural vehicle companies have also accelerated their transition to lighter, medium- and heavy-duty trucks.
The significant increase in the sales volume of heavy trucks, especially dump trucks, reflects the fact that China’s economy is heavily driven by investment, and it is also a concentrated expression of China’s irrational industrial structure.
April 2011 sales decline, industrial restructuring is the root cause
A large number of investment and hot money influx into the market, causing a series of problems such as rising prices, and the most obvious impact on the truck market is the sales of semitrailer tractors. According to data from the China Association of Automobile Manufacturers, from January to April 2011, the sales of semitrailer tractors were 232,500, a year-on-year decrease of 24.54%, and the decline in April was even greater, reaching 34.14%.
The deceleration in the growth of road freight and freight traffic volume is the direct cause of the declining demand for semitrailer tractors. From January to March, the monthly growth rate of road freight volume decreased by an average of about 8% year-on-year, and the total freight turnover growth slowed significantly. The increase in fuel prices and the non-increased freight rates have, to some extent, curbed the enthusiasm of semi-trailer owners.
The drop in demand is only a superficial phenomenon. The impact of the adjustment of the country’s industrial structure on the commercial vehicle market is deep. The 4 trillion investment made the financial crisis created the opportunity for us to adjust the industrial structure and was delayed. In the first quarter of 2011, China's final consumption contributed 60.3% of GDP, which was the highest quarterly contribution of consumption to GDP since the financial crisis, and the contribution of investment to GDP was the first time since the financial crisis was below 50%. In 2009, the contribution of investment to GDP once exceeded 90%.
When the country no longer uses GDP growth alone as an indicator of performance evaluation, the boom in investment-driven economy is gradually subsiding. This is reflected in the sales of trucks, that is, the growth rate has slowed down significantly, and some models have seen negative growth. On the other hand, under the state control of commodity prices and the continuous increase in the deposit reserve ratio, the tightening of bank loans will undoubtedly have a greater impact on 80% of commercial vehicle consumers who rely on loans to buy cars. Correspondingly, when the country emphasizes the driving role of resident consumption in the economy, durable consumer goods represented by cars have shown greater development, which has led to a gradual decline in the proportion of commercial vehicles in automobiles.
In the period of economic development transition, the adjustment of commercial vehicle sales is inevitable for the development of the industry, and many countries have experienced this stage. In the 20th century, heavy trucks in the United States also experienced rapid growth, reaching the maximum of 800,000 vehicles in the 1970s. Since then, sales have been declining and they have become relatively stable. According to Liu Ming, director of the market research department of the National Information Center Economic Consulting Center, in the United States, Japan, Germany, France, and South Korea, the proportion of medium- and heavy-duty commercial vehicles is below 3%, while the proportion in China exceeds 8%.
Growth can still be expected
Since 2000, China's commercial vehicle market has continued to expand. Taking heavy trucks as an example, the market demand will be below 100,000 before 2001; between 2002 and 2006, the heavy truck market will fluctuate between 100,000 and 300,000; in 2007-2009, the average annual demand for the heavy truck market will be around 550,000; In 2010, the heavy truck market sold more than 1 million vehicles each year. After experiencing rapid growth, will China's commercial vehicle sales shrink?
the answer is negative. During the 12th Five-Year Plan period, the average annual growth rate of the national planned GDP is 7%. According to our current assessment of China’s potential growth capacity, from the perspective of adjustments in various aspects of our country, China’s 12th five-year period is more likely to maintain the actual growth rate can still be maintained. At 9% to 10%.
According to the law that the growth rate of commercial vehicles in previous years was higher than the growth rate of GDP, during the 12th Five-Year Plan period, the average growth rate of commercial vehicles in China will exceed 10%, and the average annual growth rate is still several hundred thousand vehicles. In the first three months of 2011, truck sales were hitting a record high every month, which is enough to illustrate this point. In 2011, the factors that drove the demand for commercial vehicles still existed in large numbers, such as the construction of affordable housing, the construction of water conservancy projects, and the construction of railways. With the adjustment of the industrial structure, the decline in sales of semi-trailer tractors is also expected to be reversed in the second half of the year. Analysts predict that during the 12th Five-Year Plan period, heavy truck sales will easily exceed 1.2 million vehicles.
Therefore, for the growing commercial vehicle market in China, the decline in sales volume in April 2011 was only a growing pain. 
