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The RF front-end stage of the communication system is composed of passive devices such as a filter, a duplexer, a power combiner, an RF connector, and an RF switch. These passive devices are designed to maintain the possible linear characteristics in the operating range, but they have practically nonlinear characteristics. Passive intermodulation occurs when two or more different frequencies are used as inputs to a passive device having nonlinear characteristics. This phenomenon is called Passive IM (PIM). Intermodulation (PIM) signals are added as unwanted noise to an uplink band in a mobile communication system, which is a major noise source that deteriorates the signal to noise ratio (SNR). Therefore, the intermodulation (PIM) signal, which may cause a lot of losses in terms of operation, maintenance, and frequency use efficiency of the mobile communication system equipment, should be removed.

A system for removing an intermodulation (PIM) signal existing in an uplink band of a mobile communication system is called a PICS (Passive Intermodulation Canceller System).

30W-ICS Repeater:
Interference Cancellation System (ICS) Repeater is a personal network enhancement device with inbuilt Interference Cancellation System
ICS Repeater system is designed to solve problems of weak mobile signal, which is much cheaper than adding a new Base Station (BTS). Main operation of RF Repeaters system is to receive low power signal from BTS via radio frequency transmission and then transmit the amplified signal to the areas where network coverage is inadequate. And the mobile signal is also amplified and transmitted to the BTS via the opposite direction.

Repeaters system is designed to solve problems of weak mobile signal, which is much cheaper than adding a new Base Station (BTS). Main operation of RF Repeaters system is to receive low power signal from BTS via radio frequency transmission and then transmit the amplified signal to the areas where network coverage is inadequate. And the mobile signal is also amplified and transmitted to the BTS via the opposite direction.
Outdoor: Airports, Tourism Regions, Golf Courses, Tunnels, Factories, Mining Districts, Villages etc.
Indoor: Hotels, Exhibition Centers, Basements, Shopping Malls, Offices, Packing Lots etc.

5W-ICS Repeater:
The 5W High Power 2G 3G 4G Cell Booster Long Distance ICS Repeater is designed to provide a more cost-effective solution than adding a new Base Transceiver Station (BTS) to improve signal coverage of weak mobile signal, which is much cheaper than adding a new Base Station (BTS).
The ICS Repeater (Interference Cancellation System) is a new kind of single-band RF repeater that can automatically detect and cancel the interference signals caused by oscillation of RF feedback between the Donor and Coverage Antennas in real time by adopting DSP (Digital Signal Processing) technology. It can continuously and stably cancel the interference signals and be adapted to any changes in the surrounding RF environment.

A DAS is a system of managed hubs and remote antennas that distributes a wireless signal to a series of connected indoor or outdoor multi-band, multi-technology radio heads. ... A main hub takes that signal, digitizes it, and distributes it to other hubs and radio heads via a high-bandwidth fiber optic network

The use of an antenna system monitor (ASM) facilitates the per-channel measurement of each transmitter's forward and reverse power, the system's transmit-to-receive isolation, receive signal levels and more. Current measurement values and alarm statuses can also be viewed locally or remotely.
This mobile phone signal repeater provides the ul-timate solution in any area where cellular communications can not work well due to leak of signals.
It could also improve indoor electromagnetism environments, protract cellular battery life and reduce radiation of cellphones. It is ideal for house, home, office use.

The Single Band LTE Repeater is a cell phone signal booster system made up of antennas, cable and a signal amplifier that takes an existing cell signal, typically found outside your home or office, amplifies the signal and then broadcasts it to an inside area that has a weak or no signal.In order for the system to work, there must be an existing, stable outside signal for the system to receive and amplify
It can be applied at meeting rooms, conference rooms, museums, galleries, theaters, concert halls, churches, temples, restaurants, classrooms, training centers, factories, banks, trains, bus and more Places that require silence, confidentiality and information security

A mobile phone signal repeater provides the ultimate solution in any area where cellular communications can not work well due to leak of signals. The repeater device features easy installation & operation, build-in indoor antenna and no interference. It could also improve indoor electromagnetism environments, protract cellular battery life and reduce radiation of cellphones. A mobile phone repeater is ideal for house, home, office use.

Dual Band LTE Repeater also known as cell phone repeaters were developed to address the two factors that cause poor cell phone reception. They're designed to amplify a weak outside signal and bypass any obstructions to provide a strong inside signal to an area that was originally lacking.The system works by mounting an outside antenna in a location that currently has signal, which is typically on the roof. The signal is passed from the outside antenna, by a cable to a signal amplifier inside the building. Once the signal is amplified, it is then sent to an inside antenna, where it is broadcast out to the area which needs better reception. The system also works in reverse, with the signal from your phone being amplified and broadcast back to the tower, ensuring strong, two-way communication.

Dual-Band LTE Repeater is used to improve network coverage of mobile phone in home and offices.Dual-Band LTE Repeater is a complete network coverage solution for areas which face problems like disturbance in call, call drops and less network signals. Dual-Band LTE Repeater is placed at a network rich area from where it catches signals from the nearest tower and these signals are transmitted to the area facing the signal problem.It can be applied at meeting rooms, conference rooms, museums, galleries, theaters, concert halls, churches, temples, restaurants, classrooms, training centers, factories, banks, trains, bus and more Places that require silence, confidentiality and information security

Easy to clean and reusable, Great for hiking, mountain biking, camping, lake fishing, construction site lunch or picnicking, perfect for nasi goreng, fried rice, curries soup,rice, cereal,...Our wooden kitchen utensil set is made of a whole piece of teak without splicing. The kitchen utensils set After repeated polishing, the wood grain surface is smooth and delicate.No sawdust and any dents.

Easy to clean and reusable, Great for hiking, mountain biking, camping, lake fishing, construction site lunch or picnicking, perfect for nasi goreng, fried rice, curries soup,rice, cereal,...Our wooden kitchen utensil set is made of a whole piece of teak without splicing. The kitchen utensils set After repeated polishing, the wood grain surface is smooth and delicate.No sawdust and any dents

Paraformaldehyde is a polymer of formaldehyde with the chemical formula (CH2O)n, where n is typically in the range of 8 to 100. It is a white, crystalline solid composed of small, polymeric formaldehyde units. Paraformaldehyde is commonly used as a solid form of formaldehyde, and it has various applications in different fields.
Form and Structure:
Paraformaldehyde is a low-molecular-weight polymer of formaldehyde, consisting of repeating CH2O units.
It is often produced in the form of white, crystalline granules or as a powder.
Uses:
Fixative in Histology: Paraformaldehyde is commonly used in histology and pathology laboratories as a fixative for preserving biological specimens for microscopic analysis.
Disinfectant: It has disinfectant properties and can be used for sterilizing equipment.
Crosslinking Agent: Paraformaldehyde is used in the crosslinking of proteins, peptides, and nucleic acids in molecular biology applications.
Chemical Synthesis: It serves as a source of formaldehyde in various chemical reactions and syntheses.

Handling and Safety:
Paraformaldehyde should be handled with care, and precautions should be taken to avoid inhalation, skin contact, or ingestion.
When paraformaldehyde is heated, it releases formaldehyde gas, which is a strong irritant. Adequate ventilation and protective equipment should be used when working with paraformaldehyde.

Dissolution:
To use paraformaldehyde as a fixative or in other applications, it is typically dissolved in water to generate a formaldehyde solution.
Storage:

Paraformaldehyde should be stored in a cool, dry place away from heat sources and incompatible materials.

Pepper export from Vietnam is considered as the biggest supply all over the world, contributing 1/3 of global production and over 50% of trade volume (about 150,000 tons per year). CET GROUP JSC is one of the leading exporters in VIETNAM
Understanding that quality is the key to ensure long-term and repeated orders, our experienced team is working hard with supported by many big Manufacturers in Vietnam with the most modern technology imported from Europe and two dedicated cleaning lines, a steam sterilization machine. We can commit a high standard of pepper to specific requirements.
- Capacity: 20,000 MT per annum.

CET GROUP JSC can supply all grades of pepper whole including:
For Black Pepper:
Grades available: Fair Average Quality (FAQ), Machine Cleaned (MC), ASTA 560/570 g/l, 5mm bold, Steam sterilized (HTST), Rainforest Alliance pepper (RA).
500 G/L, 550 G/L, 570 G/L, 580 G/L, 570 G/L BOLD
Moisture: 12.5% max
Foreign matter: 0.2 - 1%

For White Pepper:
Grades available: White pepper 630 G/L DW FAQ, White pepper 630 G/L DW machine cleaned, White pepper 630 G/L DW steam sterilized (HTST).
Moisture: 12.5% max
Foreign matter: 0.2 -1%
Black bean: 3% max
PACKING:
With the automatic packaging line controlling metal, our facility can supply all size of packaging from slack bags of 25 kg, 50 kg, 60 kg or 50 lbs to bulk bags of 500 kg, 625 kg, and 725 kg.
Packaging materials are PP bag, jute bag or paper bag.

Safety Insulin Syringe with Restractable Needle
Safety Characteristics: after absorbing the expected dose of liquid medicine, if transportation is needed, push up the sliding-sleeve to protect the needle tip from physical damage during transportation; push the sliding sleeve to expose the needle tip before the injection starts, when the expected dose of liquid medicine is 100% injected, manually slide the sliding sleeve to the position where the connector base can no longer slide, the needle tip is completely covered in the sliding sleeve, and then the sliding sleeve is manually rotated until it is locked, it could effectively preventing repeated use and accidental needle sticking, and avoiding cross infection.

Formalin is a solution of formaldehyde gas dissolved in water. Formaldehyde is a colorless, strong-smelling gas that is commonly used in a liquid form, as formalin, for various industrial applications. Here are some key points about formalin:
Chemical Composition: Formalin is typically a 37% aqueous (water-based) solution of formaldehyde. The remaining percentage is water.
Uses:
Preservation: Formalin is widely used as a preservative for biological specimens. It helps to prevent decay and decomposition, making it essential in laboratories, museums, and medical facilities for preserving tissues and specimens.
Disinfectant: It has antimicrobial properties, and as such, formalin solutions are sometimes used as disinfectants and biocides.
Textile Industry: Formalin can be used in the textile industry for wrinkle-resistant finishes on fabrics.
Health and Safety Concerns:
Formalin is a strong irritant and can be harmful if inhaled, ingested, or comes into contact with the skin.
Prolonged or repeated exposure to formaldehyde can cause respiratory irritation and may be associated with certain health risks.
Proper ventilation and personal protective equipment are recommended when working with formalin.
Regulation:
Due to its potential health risks, the use and handling of formalin are subject to regulations and guidelines in many countries. These regulations aim to ensure safe practices and protect workers and the environment.

In cane sugar containing mainly sucrose, besides there are Carbohydrate,
many amino acids, especially the many essential amino acid, plays an important role in the addition of nutrients to the body; Vitamin B1, B2, B6, C; Inorganic salts
such as calcium, phosphorus, iron ... and the organic acid containing succinic acid, fumaric acid, malic acid, citric acid
According to Oriental medicine, cane sweet, cool, heat effect, new student services, profit apples, Christmas atmosphere. Used in case little dry cough phlegm, coughing up blood, including; also used in the gastric juice due to your loss of heat, red tongue less moss, dry mouth and thirst; can also be used for repeated vomiting, dry mouth, upset, bowel and apples to alcohol poisoning.

This is excellent and delicious honeycomb honey, collected in natural fields

The honeycomb is a 100% natural product, constructed by honeybees, with beneficial effects on various systems of the body, especially our stomach and digestive system.

Honeycomb is basically beeswax and raw honey. The beeswax has very little nutritional value Honeycomb with the exception of trace amounts of vitamin A. However since our system does not break down beeswax, it is a very good source of roughage. Raw honey as we have discussed is very nutritious; packed full of vitamins, enzymes, pollen, and antioxidants. Interestingly, the most nutritious of all raw honey is honey still sealed in the wax cells of the honeycomb.

Honey in its purest form (inside the cells of honeycomb) contains very little water. But honey, when exposed to air, has a tendency to pull water from the atmosphere. So, honey that is removed from the comb and exposed to air holds around 12% more water than honey left sealed in the comb. This dilution creates a slight but measurable difference in nutritional value by weight. Honey that remains sealed in the beeswax honeycomb cells is without question the purest form of raw honey

Honey bees are not the only insect to make use of this brilliant design. Paper wasps (Polistinae) construct their nests from paper using a repeating hexagonal honeycomb pattern. Although these insects do not produce honey, they do use hexagonal cells for developing brood just as the honey bee does.

The hexagon is the base shape for a matrix that minimized the used of construction material while at the same time maximizing the strength and reducing the weight of the final product.

Ceiling Fan will most likely never go out of style. Even with central air conditioning systems, and window mounted air conditioners, ceiling fans are still the most affordable way of getting air to move and circulate. With many different sizes, designs, and styles, ceiling fans can be used both indoors and outdoors, and work well in a small apartment or a large factory.