FREQUENCY - 7678 Anuncios

Domingo 18 agosto 2019

Stimulating the coil makes a magnetic induction to the tested material. The induced electromotive force received by the testing coil is related to the shape and size of the material hysteresis loop. When the low-frequency sinusoidal wave excitation voltage is magnetically induced...

Domingo 18 agosto 2019

Bolt: Mechanical parts, cylindrical threaded fasteners with nuts. A type of fastener consisting of a head and a screw (a cylinder with an external thread) is required to be fitted with a nut for fastening the two parts with through holes. This type of connection is called a bolted connection...

Sábado 17 agosto 2019

Cantidad : 10 SETS - Precio : 10000 CNY

The membranes hf pvc welding machine in Liaoning Yufei company is created with our customers for our clients. HF pvc welder is perfect for production enhancement. It can be also used for mending tarpaulins, inflatables or waterbeds. High frequency canvas membrane structure welding...

Sábado 17 agosto 2019

Cantidad : 10 SETS - Precio : 10000 CNY

The theory of high frequency welding equipment: Under the effect of the high frequency electric field, the positive and negative charges of the substance to be heated displace to form electric pole polarons. The polarons polarize repeatedly to cause the molecules to produce the intense...

Sábado 17 agosto 2019

Cantidad : 10 SETS - Precio : 10000 CNY

Equipment Description of Water Guide Pulse Welders The pulse heat sealer is a semi-automatic advanced heat pulse sealer used for welding various technical textiles, using precise control of welding parameters, manual functions such as folding, overlapping, folding, reinforcement, zippers...

Sábado 17 agosto 2019

Cantidad : 10 SETS - Precio : 10000 CNY

Liaoning Yufei high-frequency welding equipment co,.ltd has been developing and manufacturing automatic high frequency welding machine for the medical industry for over 60 years. We have created multiple solutions for the production of urine bags, blood bags, waste bags etc. It's...

Sábado 17 agosto 2019

Cantidad : 10 SETS - Precio : 10000 CNY

The scope of high-frequency inflatable welding machine in LiaoningYufei company can be used as follows: inflated Toys welding medical bag Welding ; Air bag Welding; Raincoat Rain Gear Welding; Handbags Welding; Stationery stickers Welding; Leather Embossing; Footwear Trademark Welding...

Sábado 17 agosto 2019

Cantidad : 10 SETS - Precio : 10000 CNY

Mainly application of Industrial Belt Welder Used for industrial belt skirt and belt baffles welding, welding industrial conveyor belt conveyor belt, joint, cutting, slitting, conducting bar, package edge; And running machine, mahjong machine, PVC/PU material welding General Features...

Sábado 17 agosto 2019

Cantidad : 10 SETS - Precio : 10000 CNY

Equipment Description of PVC fabric welding machine UNIFY's consistent superior quality has been upheld. The width of fully automatic magnetic curtain heat sealing equipment generally ranges from 150mm to 750mm, which can be adjusted and customized. The whole process of automatic unwinding...

Sábado 17 agosto 2019

Cantidad : 10 SETS - Precio : 10000 CNY

The scope ans application of conveyor belt welding machine in Liaoning Yufei company for treadmill and conveyor belt, treadmill belt, side wall, profile and conveyor belt welding machine. There are some features of hf welder as follows. The first is that this machine is specialized...

Sábado 17 agosto 2019

Cantidad : 10 SETS - Precio : 10000 CNY

Blister packaging is an inexpensive option for creating packages that are durable, transparent, and tamper proof. We make a variety of shapes and can custom design a blister pack that will showcase your product in the best possible manner. Although we strive to provide our customers...

Sábado 17 agosto 2019

Cantidad : 500kg

We offer different kinds of composite insulator for substation. Contact us get more details about composite insulator, such as TDS, Application Method, OEM etc. We can supply different type of composite silicone insulator, also customer required. Composite insulator composite polymer...

Viernes 16 agosto 2019

Cantidad : 80000Pcs - Precio : 3-50USD

Digital hearing aid is a hearing device that receives sound and digitizes it (breaks sound waves up into very small, discrete units) prior to amplification. And it built-in intelligence that allows them to discern between soft, but desirable sounds and louder, but unwanted noise....

Viernes 16 agosto 2019

Cantidad : 80000Pcs - Precio : 3-50USD

- Specification of JH-D10 Digital Trimmer 3 Modes Ear Hook Trimmer Hearing Aids Hearing Amplifier - Max Sound Output 128±3dB Voltage D.C.1.4V Sound Gain 57±5dB Battery Type LR44H/A675 Total Harmonic Wave Distortion 500Hz ＜6% 800Hz ＜4% 1600Hz ＜1% Battery capacity/Mah...

Viernes 16 agosto 2019

Cantidad : 80000Pcs - Precio : 3-50USD

- Specification of JH-D03 BTE FM Balanced Armature Loudspeaker Open Fit Hearing Aid Hearing Amplifier - Max Sound Output 130±3dB Sound Gain 40±5dB Total Harmonic Wave Distortion 500HZ<3%</span> 800HZ<5%</span> 1600HZ<1%</span> Operation Current/mA...

Viernes 16 agosto 2019

Cantidad : 80000Pcs - Precio : 3-50USD

- Specification of JH-907 ITE Mini Hearing Aid Hearing Amplifier - Max Sound Output 120 ± 5dB Voltage 1.5V Sound Gain ≥35dB/28 Battery size A10 Total Harmonic Wave Distortion ≤5% Battery capacity/Mah 100 Operation Current ≤6mA Operation current/mA 3.5 Frequency...

Viernes 16 agosto 2019

Cantidad : 80000Pcs - Precio : 3-50USD

- Specification of JH-351R BTE RIC FM Rechargeable Hearing Aid Hearing Amplifier - Max Sound Output 125±3dB Noise EIN ≤20dB Sound Gain 40±5dB Battery size 3.7V 30mAh Built-in lithium batter Total Harmonic Wave Distortion 500Hz <= 3.1%</span> Working current ≤2...

Viernes 16 agosto 2019

Cantidad : 80000Pcs - Precio : 3-50USD

- Specification of JH-238 Pocket Body Worn Hearing Aid Hearing Amplifier - Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥50dB/51.5 Battery size AA Total Harmonic ≤5% Battery capacity/Mah 2400 Wave Distortion Operation ≤4mA Operation current/mA 6.9 Current...

Viernes 16 agosto 2019

Cantidad : 80000Pcs - Precio : 3-50USD

JH-233 Body Worn Pocket Ear Sound Amplifier / Body Level Hearing Aid - Specification of JH-233 Body Worn Pocket Ear Sound Amplifier Hearing Aid - Max Sound Output 131 ± 5dB Voltage 1.5V Sound Gain ≥55dB/58.9 Battery size AA Total Harmonic ≤5% Battery capacity/Mah ...

Viernes 16 agosto 2019

Cantidad : 80000Pcs - Precio : 3-50USD

- Specification of JH-158 BTE Style Ear Amplifier Cheap Hearing Aids - Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥45dB/44 Battery size LR754 Total Harmonic ≤5% Battery capacity/Mah 68 Wave Distortion Operation ≤4mA Operation current/mA 4.5 Current Frequency...

Viernes 16 agosto 2019

Cantidad : 80000Pcs - Precio : 3-50USD

JH-129 BTE FM Bluetooth Earphone Appearance Ear Zoom Hearing Aid / Hearing Amplifier - Specification of JH-129 BTE FM Bluetooth Earphone Appearance Ear Zoom Hearing Aid Hearing Amplifier - Max Sound Output 125 ± 5dB Voltage 1.5V Sound Gain ≥35dB Battery size AG13 Total...

Viernes 16 agosto 2019

Cantidad : 80000Pcs - Precio : 3-50USD

- Specification of JH-116 Personal Sound Amplifier Behind The Ear Hearing Aid - Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥45dB/44 Battery size LR754 Total Harmonic ≤5% Battery capacity/Mah 68 Wave Distortion Operation ≤4mA Operation current/mA 4.5 Current...

Viernes 16 agosto 2019

Cantidad : 10 SETS - Precio : 10000 CNY

Equipment Description of High Disposition Automotive mat welding machine Our company's production of high-frequency welding machines for sun visors of cars introduce advanced technology and major components, complete product range, stable quality. It can also be customized according...

Sábado 10 agosto 2019

Cantidad : At least o - Precio : 50-150000 USD

1.5T AC ELECTRIC REACH TRUCK - STAND-UP TYPE 1.5T reach truck-stand-up type, flexible, compact in appearance，no emissions，low noise，working in narrow field, suitable for tobacco, textile, food, supermarket and other industries; Due to the stand-up driving, good vision, particularly...

Sábado 10 agosto 2019

Cantidad : Proofing b - Precio : 200-1500CNY

PTFE Teflon PCB has excellent comprehensive performance: high temperature resistance (-192°C-260°C), corrosion resistance (strong acid, strong alkali, aqua regia, etc.), weather resistance, high insulation, high lubrication, no adhesion, Non-toxic and other excellent characteristics...

Sábado 10 agosto 2019

Cantidad : Proofing b - Precio : 200-1500CNY

Custom high frequency pcb from professional high frequency pcb company china shenzhen with factory price in low cost. The high frequency of electronic equipment is a development trend, especially in the development of wireless networks and satellite communications, the high-speed...

Sábado 10 agosto 2019

Cantidad : Proofing b - Precio : 200-1500CNY

In order to make electronic communication technology have a higher speed development. High-quality high-speed transmission, many of today's communication equipment have begun to use high-frequency multi-layer PCB. The material of multi-layer high-frequency circuit boards has excellent...

Viernes 09 agosto 2019

- Some Tips In QuEChERS D-SPE? - Why choose anhydrous magnesium sulfate as a water remover? In the d-SPE purification process, the moisture content plays a crucial role in the purification effect of PSA. The lower the moisture content, the better the purification effect of PSA. Experiments...

Martes 06 agosto 2019

Yufeng MD100+ automatic donut hole machine Fryers deposit, fry, turn, and dispense cake donuts automatically, improving donut quality and reducing costs. Training and labor requirements are substantially reduced while high quality, consistent and repeatable donuts are produced time after time...

Martes 06 agosto 2019

Wholesale Yufeng INB-M donut injector Yufeng new Jelly, Jam and Creme Injector that's designed for bakery store! The injector doesn't occupy much space, but the donuts you can inject in just 15-30 minutes could be enough to fill up whole display case! This is a simple to use machine...