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Friday, August 16, 2019

Quantity : 80000Pcs - Price : 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...

Friday, August 16, 2019

Quantity : 80000Pcs - Price : 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...

Friday, August 16, 2019

Quantity : 80000Pcs - Price : 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...

Friday, August 16, 2019

Quantity : 80000Pcs - Price : 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...

Tuesday, August 13, 2019

Filtration is a kind of physical changes which separate solid impurities from the liquid through porous filter media, only fluid can pass by the porous filter media. So the degree of retention determines the separation efficiency. Hawach provides various options to satisfy every laboratory...

Monday, August 12, 2019

Syringe filter is a kind of filter connected to the front of the syringe. When the experimenters deal with the chromatographic samples with syringe filter, they should pay attention to avoiding bringing impurities in the process of filtration. One reason for the appearance of such...

Monday, August 12, 2019

Solid phase extraction principle Solid phase extraction is a separation technique that combines selective retention, selective elution, and the like. When a complex sample solution passes through the sorbent, the sorbent selectively retains the aimed compound and a small number of...

Sunday, August 11, 2019

From "removing and dismantling" to "construction", what can construction waste do when it is crushed? In recent years, with the acceleration of urbanization, projects such as road construction, building expansion, old city reconstruction, and infrastructure projects have been increasingly...

Saturday, August 10, 2019

Quantity : Proofing b - Price : 200-1500CNY

Among the large-scale use of PCI and optical modules and cable sockets, the gold fingers PCB has been divided into: long and short gold fingers, broken gold fingers, split gold fingers, gold finger plates in the process of processing, need to pull gold-plated wire, conventional gold...

Saturday, August 10, 2019

Quantity : 100000 - Price : 30$

we specialize in production and selling Shower Curtains, the most Beautiful Country Bath Curtain, you can choose the long and wide of the Shower Curtain size.visit: https://www.diy-showercurtains.com This polyester fabric shower curtain is able to print colorful images with a fine...

Saturday, August 10, 2019

Quantity : 10000 - Price : 1-10000 USD

ZC Type Mechanical Rotary Blow Flat Bag Filter Introduction: The dust collector adopts a circular body structure with uniform force, good anti-knocking performance, compact structure, high-pressure blower and blower cleaning, and is not limited by the air source condition, and uses...

Saturday, August 10, 2019

Quantity : 1 20ft con - Price : 15USD/m2

Wall cladding is the surface of one building, just like the face of one man, treat your wall with WPC cladding, then you will have one wood-like and natural surface wall, close to nature, close to the wood, but superior to wood in split and rot resistance. Exterior cladding has the...

Friday, August 09, 2019

Price : 1000-6000USD

DU7200 large venue laser projector has 7200 lumens brightness with the 1920*1200 resolution, and the throw ratio of DU7200 is 0.79. It can supply to the exhibition hall, company exhibition, the lecture hall of the university, the performance and others. Functions of Laser 1920x1200...

Friday, August 09, 2019

Price : 1000-6000USD

7100 lumens brightness, 1920*1200(16: 10)WUXGA resolution, 0.79 short throw laser projector DU710ST large venue short throw projector has 7100 lumens brightness and it adopts DLP projection technology with 1920*1200 resolution. The throw ratio of DU710ST is 0.79: 1. It has the functions...

Friday, August 09, 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...

Thursday, August 08, 2019

As a single-use filter cartridge, Syringe filters are utilized to remove particles from the sample prior to high-performance liquid chromatography (HPLC). The scientists like to attach them to the end of the syringes for general filtration, as syringe filters are affordable and convenient...

Wednesday, August 07, 2019

Quantity : 1 - Price : 10 000,00 €

- By means of rich industry experience and profound knowledge, Hongxing Machinery is committed to providing comprehensive semi-portable crushing (also known as tire mobile crusher) machine. The production description of semi-portable crusher has many titles, such as the wheeled crusher plant...

Wednesday, August 07, 2019

Each analyst needs filter paper, which is a product with high consumption in the laboratory. Filter paper is commonly used in analytical laboratories as a filter medium to separate the solution from the solid. Basic introduction The paper is loose and has strong absorption performance to liquid...

Tuesday, August 06, 2019

Quantity : 1 million - Price : Small tablet: 1.9~30

8.5 & 10 & 12 Inch Kids lcd writing tablet board Paperless LCD writing tablet for Kids You can choose 8.5 inch and 10 inch Green and Rainbow color are available Includes stylus, but can be written on with other tools 8.5 Inch LCD eWriter Paperless LCD writing tablet Environmental...

Tuesday, August 06, 2019

Membrane syringe filters are used to clarify small-volume sample solutions generally. The housing is well-designed to spread the sample solution over the entire surface of the membrane so that maximum membrane capacity is used. And the construction without any glue or binders helps...

Tuesday, August 06, 2019

Sample Vials are an essential tool in the lab. These general purposes of glass vials are to provide exceptional resistance to heat shock and chemical leaching. Our sample vials are always used in the field of a biological agent, cosmetics, high-value chemistry. And we have high-quality...

Tuesday, August 06, 2019

Quantity : 400m2/ wee - Price : $90/m2

Beijing Palm International Group Ltd., offers artificial shrubs and trees. Our products are grouped by different kinds of artificial plants, such as fern, banana tree, traveler palm, area palm and so on to satisfy customers' requirements . All artificial shrubs and trees are made of plastic...

Saturday, August 03, 2019

Since July, the demand for sand and gravel has continued to rise, and the price of sand and gravel has risen linearly. Many people are optimistic about the opportunity to build a mechanism sand plant. Take the river pebble as an example. How much profit does a ton of river pebble make...

Friday, August 02, 2019

The vial is a relatively small glass tube or vial, usually with a vial cap. Bottle bottoms are generally flat, rather than having a spherical bottom like a test tube. When choosing a vial, customers should mainly choose from several aspects, such as material, color, volume, diameter...

Thursday, August 01, 2019

It is important for the experimenters to use and maintain chromatographic columns correctly. They should focus on many some things so as to protect the columns in the using process. Here we talk about several attentions. Avoid changing pressure and temperature dramatically and any...

Wednesday, July 31, 2019

- Description of Top Entry Ball Valve: - ZECO top entry ball valve is widely used in oil and natural gas pipelines (industrial valve). Top entry ball valve and side entry ball valve are also divided into floating structure and trunnion mounted structure, the main difference between...

Wednesday, July 31, 2019

- The Selection Principle of Silica Gel Column - Commonly, the maximum sample loading volume of a silica gel column is about 1/20 of the volume of the column's silica gel. However, as a practical matter, specific sample loading volume should be decided by each constituent's degree...

Tuesday, July 23, 2019

Description of Calcium aluminate cement Calcium aluminate cement, alumina cements or high alumina cements are obtained by the reaction at high temperature of lime (from limestone) and alumina (contained in natural minerals like bauxite). The product obtained after cooling is a hard mineral...

Monday, July 15, 2019

Quantity : 1 - Price : $36.78

What Are Some Tips For The Maintenance Of Human Hair Extensions? Have you taken remy hair extensions? Do you know how to take care of hair extensions? Here are some tips about how to maintain the hair extensions. It can be used for more than 3 months if you can take good care of it...

Monday, July 15, 2019

Laboratory workers use a membrane to filter two phases. Actually, the membrane is a kind of media. According to different aperture sizes, filter membranes can be divided into the microporous membrane, ultrafiltration membrane, nanofiltration membrane a nd reverse osmosis membranes...