Steel products refer to solid straight steel products with a certain section shape and size, including wire, profile and plate, which are formed by plastic processing except pipes. It can be divided into hot rolling, cold bending, cold rolling, cold drawing, extrusion, forging, hot bending, welding and special rolling according to the production method. It can be divided into railway, shipbuilding, mining, structure and construction according to its use. According to the material can be divided into carbon steel, alloy steel and stainless steel. At the same time, these steel products can be reprocessed to form semi-finished products or finished products to meet special requirements. We can according to the customer's different needs, according to the drawings or samples for reprocessing production.
Pipe fittings are the general names of parts and components that play the role of connection, control, direction change, diversion, sealing and support in the pipeline system. Steel fittings are pressure fittings. According to the different processing technology, it is divided into four categories, namely, butt welding pipe fittings (divided into weld and no weld), socket welding and threaded pipe fittings, flange pipe fittings.
According to the application:
1. pipe fittings for connecting pipes are: flanges, live joints, pipe hoops, clamps, clamps, throat hoops, etc.
2. changing the direction of the pipe: bends, bends.
3. pipe fittings changing pipe diameter: variable diameter (different diameter pipe), different diameter elbow, branch pipe table, reinforcing pipe.
4. pipe fittings with additional piping branches: three links, four links.
5. pipe fittings for pipe sealing: gasket, raw material belt, thread, flange blind plate, pipe plug, blind plate, head, welding plug.
6. pipe fittings for pipe fixing: clasp, hook, ring, bracket, bracket, pipe clamp, etc.
According to the connection :1, welded pipe fittings 2, threaded pipe fittings 3, clamping pipe fittings 4, clamping pipe fittings 5, socket pipe fittings 6, rubber ring connection pipe fittings
According to the material divided into 1, cast steel pipe fittings 2, forged steel pipe fittings 3, alloy pipe fittings 4, stainless steel pipe fittings.
Pipe fittings are widely used in municipal, petrochemical, west-to-east gas transmission, ships and nuclear power.
Stainless steel tube is a hollow long strip steel made of stainless-steel material. Because of its excellent corrosion resistance, it is mainly widely used in petroleum, chemical, medical, food, light industry, mechanical instruments and other industrial transportation pipelines and mechanical structural components. In addition, when the bending and torsion strength are the same, the weight is light, so it is also widely used in manufacturing mechanical parts and engineering structures, but also commonly used in the field of furniture decoration.
Stainless steel pipe is divided into seamless pipe and welding pipe according to the production mode, seamless steel pipe can be divided into hot rolling pipe, cold rolling pipe, cold pulling pipe and extrusion pipe, etc., cold pulling and cold rolling is the secondary processing of steel pipe; welding pipe is divided into straight welding pipe and spiral welding pipe.
Stainless steel pipes can be divided into round tubes and different tubes according to the cross-sectional shape. The form tubes have rectangular tubes, rhomboid tubes, ellipse tubes, hexagonal tubes, octagonal tubes and various cross-sectional asymmetric tubes.
It can be divided into Austenitic Stainless Steel Tube Ferritic Stainless Steel Tube Martensitic Stainless Steel Tube and Duplex Stainless Steel Tube by the type of stainless steel.
Fasteners are the general term of the class of mechanical parts used in fastening two or more parts (or components) into a whole. It is widely used in energy, electronics, electrical appliances, machinery, chemical, metallurgy, mold, hydraulic and other industries, at the same time, in various kinds of machinery, equipment, vehicles, ships, railway, bridge, construction, structure, tools, instruments, chemical, instruments and supplies, you can see all kinds of fasteners, is the most widely used mechanical foundation parts. It is characterized by a wide variety of variety specifications, different performance uses, and a very high degree of standardization, series, and generalization. Therefore, a class of fasteners that already have national standards is called standard fasteners, or simply standard ones.
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Circular steel pipe is both openings and have hollow concentric sections of steel larger than the surrounding. The specifications of steel pipes are indicated by appearance dimensions and inner diameter and wall thickness, with a wide range of dimensions from very small diameter capillary to large round steel pipe of several meters in diameter. Round steel pipes can be used for pipelines, thermal equipment, machinery industry, petroleum geological drilling, containers, chemical industry, and special uses. It can be divided into seamless, ERW, LSAW, SSAW steel pipe according to the production process.
Hollow Section steel Tube is the general name for the steel pipe other than thecircular steel pipe. Such as square, rectangle, oval,elliptical, cone, trapezoidal, spiral, etc. Different steel pipe can more adapt to the particularity of use conditions, save metal and improve the labor productivity of parts manufacturing. It is widely used in aviation, automobile, shipbuilding, mining machinery, agricultural machinery, construction, light textile and boiler manufacturing. The methods of producing different pipes are cold pulling, electric welding, extrusion and hot rolling, etc. Compared with the round tube, the different tubes generally have a larger moment of inertia and cross section modulus, and have a large bending resistance and torsion resistance, which can greatly reduce the structural weight and save steel.
The web is an ocean of information containing more than 10 billion web pages, wherein 90% of them are in non-structured or semi-structured formats. At present, it is expanding with an increasing rate of 1 million pages per day. The information is increasing at an explosive speed while people¡¯s time and energy are limited. The information absolutely valuable for enterprises or individuals is just lying in this worldwide ocean of the Internet, and how to extract them has become one of the most imperative tasks confronting the research institutions that are engaging the important topics of Information Retrieval, Data Mining, Knowledge Management and Competitive Intelligence etc.
The Knowlesys Web Data Mining System(KWDMS) is like a huge blue whale who cruises in this information ocean everyday and is capable of automatically and accurately extracting valuable data for you from the webpage ocean wherein a multitudes of useless text (such as page headers and footers, column listings and advertisement messages) shall be excluded.
In more than five year¡¯s time, the Knowlesys Software, Inc. had developed the KWDMSíºC a powerful web information extraction system. It has a stratified structure and a loosely coupled module design comprising many sub-systems.
The KWDMS can extract designated information in big volume from the web, and integrate them into specified relational databases, thus to help customers to excavate precious stones from the Internet minefield. Since the process converses the information from the semi-structural form into the structural form, from their dispersed state to the concentrated state, and changes them from the remotely existed information to your locally hoarded treasure, as well as from the visual file into the digital record, you can surely extensively use them in the future.
The KWDMS is capable of doing data extraction from various types of websites. In addition to extracting field data of semi-structured construction, it can also extract some free text information like e-mail addresses and many types of multimedia files.
The KWDMS is characterized as a stable running, intelligent crawling and accurate extracting software. The KWDMS is an information extraction platform. When new extraction task is required, it is necessary to use this platform to configure the new web crawling and extraction script and parameters.
A general database access layer is developed in the KWDMS that enables its back end connect to any relational database, such as MS SQL Server, Oracle, DB2, Sybase, MySQL and InterBase etc, even those file database like the Access database. Regardless which type the database is, the extracted data can be checked with a general database browser, as well as export them into various formats such as XML, CVS, HTML, Excel and so on.
BQC was found in 2003, specializes in PCBA and we have done excellent for 9 years we provided material sourcing service, PCB circuit and layout design, PCB fabrication (manufacture), components procurement, SMT (Surface mounting technology), THT, SMT assembly and through hole components insertion, IC pre-programming / burning on-line, PCB assembly, prototype, in-circuit testing, function testing as requested, casing assembly, box-build assembly, packing design and manufacturing.
Shenzhen Baiqiancheng passes the quality authentication ISO9001:2008 and use the ERP system many years, our factory is in Shenzhen with 5500 square and 320 employees.
Green plant with black pot
3.5ft. x 6.5" x 6.5" ( 106.68cm x 16.51cm x 16.51cm)
Fits 6.5" diameter container
Polyester, plastic, iron wire, foam, cement and river sand
Pcbs and pcba for control boards
Oem and odm orders are accepted
Any pcba, smt, final assembly vertical integrated manufacturing solutions are accepted
Customized designs and parts are welcome
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Phosphatidylserine (PS), A natural brain building block, is emerging as one of the most promising natural sources for cognitive health supplements. PS (phosphatidylserine) was identified by the US Food and Drug Administration (FDA) in October 2006 as GRAS, which means PS can be added as a nutritious functional food material in yogurt, milk powder, bread, power drinks and other foods.
