A headset is a pair of conversion units that take signals from a media player or receiver and convert them into audible sound waves using speakers close to the ear. From the development of the audio industry as a whole, wireless headphones are still a new thing, the development time is not long

A life jacket is a type of personal protective equipment (PPE) that allows a person to float if they fall into the water. There are international standards and national regulations on the technical characteristics of life jackets. Commonly seen life jackets are foam life jackets and air expansion in

The hand plays a very important role in the process of production. But hands are also vulnerable, accounting for about 25 percent of all industrial injuries. Fire and heat, electricity, chemicals, bumps, cuts, abrasions and infections can all cause injury to the hand.

Cotton fabrics are made of cotton and come in many grades. The fiber covered on the seeds of cotton plants of mallow family, also known as cotton, short for cotton. It is an important raw material in the textile industry. Cotton fiber products have good moisture absorption and air permeability.

As a kind of clothing accessories, buttons not only act as connecting parts in clothing, but also can play the role of embellishment and decoration. Resin buttons made of polyester are expensive and suitable for clothing.

Fabric is the material used to make clothing. As one of the three elements of clothing, fabric can not only interpret the style and characteristics of clothing, but also directly affect the performance effect of color and shape of clothing. Test database provides professional fabric testing services