The purpose of this utility model is to supply the emulsion pump head with a simple layout, to prevent the introduction of harmful substances during the operation process, the use is cleaner, the service life is long, it can be used repeatedly, without pollution, and can be easil···

Make-up should represent the forefront of trendy fashion. Because of this, the outer packaging of make-up products also reflects the trend of fashion everywhere. As the business card of cosmetics, packaging design can influence consumers' impression of the product from the be···

Synthetic plastics have made great contributions to promoting industrial development and improving people's living standards. In the early stages of the development of the plastics industry, the chemical stability of synthetic materials is one of the contents of great concern···

A. Distributors are divided into two types: bar mouth type and screw mouth type. From the perspective of function, they are also divided into spray, foundation cream, lotion pump, aerosol valve, and vacuum bottle.B. The size of the pump head is determined by the caliber of the ma···

1. Bernoulli principle:The Bernoulli principle says that in the fluid, the flow rate is large and the pressure is small; the flow rate is small and the pressure is strong. The fluid will automatically flow from high pressure to low pressure. When passing through the trigeminal tu···

The watering can manufacturers need to conduct a variety of research in the production of watering cans, especially in terms of price, too high or too low is not suitable, then you know how he is pricing.The price of the watering can is different. Since the volume of the watering···