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We are pleased to announce that effective 8th August 2023, our company name will change from ZENGO INTERNATIONAL Ltd. to ZENGO GROUP LIMITED. This decision to rebrand our company is the result of careful consideration and reflects our commitment to continuous growth and advancement in the global market. As ZENGO GROUP LIMITED, we are poised …

ANNOUNCEMENT Company Name Change – ZENGO INTERNATIONAL Ltd. to ZENGO GROUP LIMITED Read More »

There are many materials used for ventilation ducts, but the two most commonly used are as follows: (1) sheet metal Sheet metal is the main material for making air ducts and components. Commonly used are ordinary sheet steel, galvanized sheet steel, stainless steel sheet, aluminum sheet and plastic composite steel sheet. Their advantages are that they …

What are the materials of the ventilation ducts? Read More »

There are the following 6 types of air duct fittings commonly used in ventilation ducts, and their functions are as follows: 1. Flange Flanges are used to extend the connection between air ducts of ventilation ducts and between air ducts and accessories, and can increase the strength of air ducts. According to its cross-sectional shape, …

What are the commonly used air duct fittings on ventilation ducts? Read More »

The main function of ventilation ducts is to circulate the air and reduce the concentration of harmful gases. We will inevitably generate a certain amount of noise during use. If it is used in residential areas and commercial areas, excessive noise will have a great impact. To the nearby crowd, how should we avoid noise …

How to reduce noise from ventilation ducts Read More »

Air conditioner, as an essential household appliance, has served us for nearly a century. Now split air conditioner is increasingly abandoned by people because it is not beautiful enough, high energy consumption, loud noise and so on. Now many people begin to focus on the central air conditioning for families. The structure principle of household …

Air conditioner Read More »

Advantage     In addition to the air supply port, the indoor unit of the household central air conditioner also has a return air  port. Therefore, the household central air conditioner has a more reasonable air circulation and the indoor        temperature is more uniform. Generally speaking, our indoor temperature can maintain a …

Do I need to install central air-conditioning in my home? Read More »

1. Density method: examine the density of various plastics, use liquid as the medium, check the ups and downs of the plastic in the liquid medium, and roughly distinguish the major types of plastics, such as a piece of plastic in water, floating on the surface of the water, it can be concluded that the …

Do you know how to distinguish the quality of plastic pipes? Read More »

Plastic pipes are generally made of synthetic resin, that is, polyester as raw material, added with stabilizers, lubricants, plasticizers, etc., and processed by extrusion in a pipe making machine in a “plastic” method. Mainly used for tap water supply system piping, drainage, exhaust and sewage sanitation pipes, underground drainage pipe systems, rainwater pipes and threading …

Introduction of plastic pipe Read More »

Air conditioner, a kind of air conditioning system. A finalized product assembled with compressor, evaporative cooling coil, condenser, filter, motor, fan and automatic control device. Referred to as air conditioner, also known as air conditioning unit. The air conditioner has various forms, flexible use, compact structure and easy installation; the disadvantage is that the humidity …

The air conditioner has various forms and flexible use Read More »