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 Raspberry Pi 4 Model B is one of the popular Raspberry Pi range of single board computers. It offers ground-breaking increases in processor speed, multimedia performance, memory, and connectivity compared to the prior generation Raspberry Pi 3 Model B+ while retaining backward compatibility and similar power consumption. For the end user, Raspberry Pi 4 Model B provides desktop performance comparable to entry-level x86 PC systems.
Key features include a high-performance 64-bit quad-core processor, dual-display support at resolutions up to 4K via a pair of micro-HDMI ports, hardware video decode at up to 4Kp60, up to 8 GB of RAM, dual-band 2.4 / 5.0 GHz wireless LAN, Bluetooth 5.0, Gigabit Ethernet, USB 3.0, and PoE capability (via a separate PoE HAT add-on). The dual-band wireless LAN and Bluetooth have modular compliance certification, allowing the board to be designed into end products with significantly reduced compliance testing, improving both cost and time to market.
Features
1.5 GHz quad-core ArmCortex-A72 CPU
VideoCore VI graphics
4kp60 HEVC decode
True Gigabit Ethernet
2 USB 3.0 and 2 USB 2.0 ports
2 micro-HDMI ports (1 4kp60 or 2 4kp30)
USB-C for input power, supporting 5 V / 3 A operation
2 GB, 4 GB, and 8 GB LPDDR4 memory SKUs
Digital to Analog Converters - DAC QUAD 16-BIT +/-15V DAC
Resolution: 16 bit
Sampling Rate: 1.26 MS/s
Number of Channels: 4 Channel
Settling Time: 8 us
Output Type: Voltage
Interface Type: 3-Wire
Analog Supply Voltage: +/- 11.4 V to +/- 16.5 V
Digital Supply Voltage: 2.7 V to 5.25 V
Minimum Operating Temperature: - 40 C
Maximum Operating Temperature: + 85 C
Package / Case: TQFP-32
Number of Converters: 4 Converter
Pd - Power Dissipation: 381 mW
FPG:250PCS
Supply Voltage - Max: 16.5 V
Supply Voltage - Min: 11.4 V
Subcategory: Data Converter ICs
Best Material and Heat Resistant: This spark plug uses high quality iridium material which is resistant to extreme temperatures in the engine combustion chamber, ensuring optimal performance and long service life.
1.Induction on/off lock
2 Close the window automatically
3.Password contingency solution
4.Brake to lock, flameout to unlock
5.Remote controller low-power tip
6.Sleep mode of remote controller and main controller system.
7.Rolling code security.
Accessory in unit box: 1 host; 1 alarm speaker; 1 vibration sensor; 1 relay; 2 keys; 2 high frequency antennas; 1 adapter; cables.
Unit box packing details: N.W: 1.21kg; G.W1.52kg
Inner Box (qty: 1) Dimension: 34.2cm*25cm*10cm
Master Carton (qty: 10) Dimension: 53cm*36.2cm*52cm
G.W/ Carton: 16.2kg
The Passive Keyless Entry(PKE) System is a new electrical product for vehicle. It will be more convenience and more safety for the user than the old RKE system. The PKE system used RFID technology, it is means highest security.
Main Function
1.Passive doors Lock
By simply walking away from your car over 1.5 to 2 meters, doors will automatically lock and ARM the security system.
2. Unlock doors automatically
As user approach the vehicle and in the range of 1.5 to 2 meters, the system will automatically identify the driver who has a valid smart key and unlock the doors immediately.
3. Immobilizer function
The PKE system still include immobilizer function, it can provide user the greatest protection against vehicle theft. Once user enter the vehicle and attempt to start the vehicle, the device will verify the drivers transponder. If a valid transponder is identified, the LED turn off allowing the driver to start the vehicle. If not, the horn and lights will sound and flash for alarming, and the vehicle engine can not be started also.
4. Closing Windows Automatically
The same time as locking the doors after driver leaving, system will close all windows which didnt close automatically.
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.
1. Platform£ºMTK 6516 CPU
2. Operating system£º Android 2.2 Froyo
3. LCD£º TFT 3.5¡± with 320x480 pixel resolution (HVGA)
4. Camera£ºPrimary£º2.0MP With dual LED flash, Secondary: 0.3MP
5. RAM /ROM£º512M+2GB
6. External memory£ºMicroSD, up to 16GB
7.Network&data Transfer£º
Frenquency: GSM 850/900/1800/1900
GPRS£ºCLASS12.32-48kbps
EDGE: NO
WLAN: Wi-Fi 802.11 b/g/n, DLNA
Bluetooth: YES V2.1
Wap: YES
USB: Yes, 2.0
8. Analog TV: Yes, PAL¡¢NTSC¡¢SECAM
9. Battery: Standard battery,Detachable 1050mAh Li-Ion
10. Size: 115.5mm x61.5mm x12.6mm
11. Accessories: one batteries, One charger, One USB cable, One earphone, One user manual, One color box
1)Platform: Qualcomm 6240
2)Frequency: GSM850/900/1800/1900MHZ
UMTS: 900/2100MHZ
3)CPU: 230 MHZ
4)WCDMA: DL: 384Kbps,
UL: 384Kbps
5)Display: 2.4inch QVGA display
6)GSM voice codec: FR/EFR/HR/AMR (NB)
7)Camera: Dual high definition camera with flashlight
8)Battery: Support NOKIA battery, and Chargers
9)Date: MSN, Face book, Yahoo, OperaMINI ,Ebuddy. GPRS,WAP
10)T-Flash Slot: support T-flash card (Option),Maximum support 2GB.
11)Multimedia: Music Player / Video Player / Video Recorder / Camera / Voice Recorder/ E-Book
12)Download: Music/ Video/ Pictures/ Animations / Ring Tones/ Wallpaper/ Screensaver
13)Tools: Torch, Calendar, Memo, Alarm, Games, Calculator, Stopwatch, World Time, Unit Conversion
14)Languages: Multi-language support
15)Accessories: 1 Battery, 1 Data Cable,1 Earphone,1 User Manual.
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