The composition of nitrile gloves Nitrile rubber is obtained by emulsion polymerization of butadiene and acrylonitrile. Its products have excellent oil resistance, high wear resistance and good heat resistance. It is made of high-quality nitrile rubber…
The composition of the head flower The head flower is a jewelry developed from the hairpin. It consists of two parts: the flower head and the needle stile. Most of the head flowers are made of pearls and precious stones. Therefore, a stable support is…
Composition of plastic bags Synthetic resin Synthetic resin is the main component of plastic, and its content in plastic is generally 40% to 100%. Due to the large content and the properties of resins that often determine the properties of plastics,…
9. The composition of traffic lights The motor vehicle signal light is a group of lights composed of three unpatterned circular units of red, yellow and green to guide the passage of motor vehicles. The non-motor vehicle signal light is a group of lights…