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Mask Air Flow Resistance and differential Pressure Tester used for face mask air flow resistance and differential pressure testing to check breathability and can also be used to check differential pressure of textile materials gas exchanger.

The output of the air flow is set by a gas flow meter, the air flow passes through a certain area of the test sample, the current pressure is detected by a pressure sensor, and the pressure difference is calculated.

1. Purity & Composition
Our oxygen free copper strip is manufactured from grade M00 copper in full compliance with GOST 859 2014 standard. The product achieves an exceptional purity level of 99.9999% copper content by weight. In accordance with the controlled impurity list including Li, Be, Mg, Ti, V, Co, Mo, and Cd as specified in Technical Conditions TU24.24-002-59861625-2023 for copper ingots, the total impurity content does not exceed 0.0001%. The main copper content is calculated as the balance after deducting all controlled impurities, guaranteeing the highest grade of material purity for critical applications.

2. Product Form & Dimensions
The strip is supplied in a standard busbar format with precise dimensions of 10 mm 100 mm 1000 mm (thicknesswidth length). This uniform size facilitates easy handling, machining, and integration into various manufacturing processes.

3. Key Performance Features
Excellent electrical conductivity enabled by the ultra-high purity and oxygen-free structure, ensuring minimal resistive losses.

Superior anti-oxidation properties - the absence of oxygen and controlled impurity levels significantly reduce surface degradation, extending service life in demanding environments.

Wide applicability - suitable for semiconductor manufacturing, high-frequency components, precision electrical contacts, vacuum electronics, and research-grade experimental setups.

4. Quality Assurance
Each batch of oxygen-free copper strip is produced under strict quality control procedures, with verification of dimensional accuracy, purity, and impurity composition. A certificate of analysis confirming compliance with GOST 859-2014 and TU24.24-002-59861625-2023 is available upon request for every shipment.

5. Each batch is produced individually for the client to order.

1. Purity & Composition
Our ultra fine copper powder boasts a purity level of 99.9999% (6N) by weight, calculated as the balance after determining all controlled impurities in strict accordance with technical specification requirements. The isotopic composition is naturally distributed as Cu 69.09% and Cu 30.91%. The mass fraction of the main component is derived by subtracting the total content of controlled impurities from 100%, ensuring the highest level of material integrity for demanding industrial and research applications.

2. Physical Characteristics
The powder is classified as an ultrafine grade, with 90% of particles exhibiting an average particle size of 12 m. Its apparent density ranges between 1.25 and 1.50 g/cm³, and the powder features a non laminar (non-flake) structure, which enhances flowability, improves packing behavior, and ensures uniform dispersion in mixing and compounding processes.

3. Stabilization & Preservation
To guarantee optimal storage performance and prevent surface oxidation during transportation and handling, the copper powder is stabilized and preserved under a protective argon atmosphere throughout the entire logistics chain.

4. Packaging Options
For standard orders, the powder is supplied in special sealed containers filled with argon, available in 2 kg or 3 kg sizes. These containers are then placed into plastic cartons, with a net weight of 36 kg per carton, and eight cartons are arranged on each pallet for efficient handling and shipping.

For bulk orders of 5 metric tons and above, we offer an alternative packaging solution using 85 kg aluminum drums, also argon preserved, to ensure product stability while optimizing logistics costs for largeâ??scale industrial consumption.

Material: 87% Nylon 13% Spandex
Color: Black/Blue/Brown/Crimson/Dark Green/Navy/Purple
Size: 4/6/8/10/12

Material: 80% Nylon 20% Spandex
Color: Blue/Choc/Green/Grey/White
Size: 4/6/8/10/12

Description: E1 Fitness Sport Bracelet Smart Watch Silicone Wristband IP68 Water Resistant Tefiti
System requirements: Android 4.4 and above, IOS 8.0 and above, support bluetooth 5.0
Screen display: 1.4-inch IPS color screen 240X240
Battery capacity: 200mah
Waterproof level: IP68
UI language: Chinese, English, Korean, Japanese, German, Spanish, French, Italian, Portuguese, Arabic, Russian, Dutch, Hindi, Czech, polish, Turkish, Indonesian
MOQ: 10 PCS per style
Function:
1.Time and date display, step count, calories, distance, weather display, stopwatch
2.Heart rate detection (real-time detection and timing detection -- 2 hours interval), blood pressure detection and sleep monitoring (sleep duration and sleep quality)
3.Store 8 historical information, adjust the brightness of the bracelet, check the MAC address of the bracelet, and reset the bracelet
4.Multiple movement modes (running, cycling, swimming, tennis, rope skipping, table tennis, badminton, etc.) GPS movement track function
5.The first interface of the bracelet can be switched between 4 dial UI
6.Phone calls reminding, SMS, QQ, WeChat Facebook, Skype, Twitter, WhatsApp, Line, KakaoTalk Hangouts, and add other custom APP message content delivery
7.Sedentary reminder, alarm clock reminder, task reminder, etc
8.WeChat sports access, sports goal setting, fitness information sharing
9.Raise the hand to light the screen, find the phone, call reject do not disturb mode (do not disturb time set to turn off the vibration of the bracelet, turn off the information reminder)

We, Guangzhou Jiande Watch Co.,Ltd, is pecialized in design, manufacture and sales of adult watches, including smart watch & quartz watch & automatic watch in leather band or stainless steel band . In addition, we also offer OEM and ODM service. We can make unique design of watches for customers as promotional gifts or business souvenir, to help them enhance their company brands.

More about us:
1). 2000 square meters of workshop with an elite team of more than 100 people;
2). Annual output of more than 2.5 million PCS of watches;
3). Superior quality control. Our watches are 100% QC inspected and 100% waterproof tested by the most advanced waterproof testing equipment and precision testing apparatus;
4). Good After-Sales Service. We have a professional after-sales team to quickly respond to every customer's needs and questions.
5). Re automatic watch and sport smart watch, we have above 2000 pcs per style for fast delivery and small MOQ 10 pcs per style.

1. 5 seconds instantaneous heating.
2. Material: Brass & ABS•
3. Chrome finish
4. Separate electricity wall design.
5. Dry burning prevention.
6. Sink mounted
7. Single handle
8. With swivel spout fit for two basins
9. Temperature: 30 - 60 degrees (adjustable)
10 .Easy to install and use
11. Waterproof:IPX4
12. Come with 1.5m power line.

Instruction:
1. Temperature: 30 - 6 0 degrees (adjustable)
2. Rated voltage: 220V-250V
3. Rated frequency: 50-60Hz
4. Rated input power: 2500W.

Faucet Series>> 004 Series
Name: M-E0041

Description E58 Bluetooth Smart Watch Heart Rate Blood Pressure Dectection Fitness Sport Bracelet Remote Taking Picture
System requirements Android 4.4 and above, IOS 8.0 and above, bluetooth 4.0 support
Screen display A 0.96IPS -inch color screen
Battery capacity 100mah
Waterproof level IP67
MOQ 10 PCS per style
Function
1.Time date display, step count, calories, distance display
2.Heart rate test, blood pressure test sleep monitoring (sleep time, sleep quality)
3.Standard motor function (steps, distance, calories)
4.Call reminder, SMS, QQ, WeChat message content push
5.WeChat sports access, sports goal setting, fitness information sharing
6.Shake take pictures, don't disturb mode

This mask is not intended for medical use, and not proven to reduce the transmission of disease.
Comfortable & Fits Most: Mask is made of non-woven fabric for easy breathability.
Uniquely designed: Comfortable elastic earloop, extra-soft ear loops eliminate pressure to the ears.
3-ply, with a melt-blown polypropylene filtration layer.
Uses: Clean, personal care. These masks should be disposed of after each useï¼?
protection from non-oil particles, PM2.5 pollution, virus, smoking, dust, odor, pollen, droplet.
FDA-Registered for general use. One size fits all.
Pack of 50.

Product Features
3-layers of protection

Not-woven outer layer + filter paper layer + skin friendly not-woven inner layer.Breathable and comfortable,low breathing resistance.

Comfortable ear-loop

Comfortable ear-loop, extra-soft ear loops eliminate pressure to the ear. You feel comfortable with periods of time usage.this disposed.

Hidden nose stripes

Inset with bendable metal nose strips freely adjust shape according to face shape, increase facial fit, adjustable according to nose height.

Better protection

Perfect when travelling through congested airports, bus terminals, malls, parks, and busy city streets.

Input pressure 15Mpa
Output pressure 0.2-0.3 Mpa
Flow range:1-10L/min
It has different styles

size 32cm

made of carbon steel

size 32 cm

made of carbon steel

size 30 cm

made of carbon steel

size 28 cm

made of carbon steel

size 42 cm

thickness 1.5 mm

made of coated iron

size 45 cm

thickness 1.5 mm

made of coated iron

size 36 cm

thickness 1.5 mm

made of coated iron

size 34 cm

thickness 1.5 mm

made of coated iron

size 32 cm

thickness 1.5 mm

made of coated iron