1. Different structure
The disposable three-layer mask is made of two layers of fiber non-woven fabric, which is used for medical and health care. One layer is added in the middle, and more than 99% of the filter solution spray cloth is welded by ultrasonic [...]
Offset paper and use. Offset paper, also known as offset printing paper, is a kind of relatively high-grade printing paper, which is generally used for offset printing machine for book or color printing. Offset paper is divided into single-sided offset paper and double-sided offset [...]
Ink classification
The drying of one component ink (also called solvent volatile ink) depends on solvent volatilization. This ink does not have to be added with catalyst. There are two kinds of one component inks: glossy and non glossy. They are mainly used for printing [...]
The pad printing process is very simple, using steel (or copper, thermoplastics) intaglio, using a curved surface pad head made of silicone rubber material, dip the ink on the intaglio onto the surface of the pad head, and then press it on the surface [...]
Polypropylene resin is one of the four general thermoplastic resins (polyethylene, polyvinyl chloride, polypropylene, polystyrene). It is produced by polymerization with propylene as raw material and ethylene as comonomer.
The production process of polypropylene mainly experienced several development stages, such as solvent method, solution method, [...]
There is no liquid waste discharged from this process, and there are few hydrocarbons discharged to the atmosphere, so the impact on the environment is very small. Compared with other processes, this process is easier to achieve strict environmental, health and safety standards. Another [...]
1. According to the different colors of grapes, grape varieties can be divided into white varieties (white skin and white meat), red varieties (red skin and white meat) and dyed varieties (red skin and red meat). White wine can be brewed from white varieties, [...]
White cardstock is a kind of solid and thick paper with large quantity. Once upon a time, some people planned to divide paper, cardboard and paperboard on the basis of ration; in the early years, in Shanghai shopping malls, white thick paper with a [...]
Very dry type
A light, dry rum
This kind of rum is mainly produced by the Spanish speaking countries of the West Indies, such as Cuba, the Virgin Islands, Dominica, Mexico, Venezuela, etc., among which the rum of Cuba is the most famous.Strong category
A rich and [...]
That’s why the company built the Guinness warehouse. Guinness managers point out that “Guinness warehouse” should be a place to attract young people who like to go to bars and clubs. The Guinness warehouse is built in a nearly 100 year old building. This [...]