In the process of producing hand tools, such as carpenters pliers (pincers), adjustable spanners and bench hammers, the first part of the process requires forged pieces of certain sizes. These are the raw materials of ...

Stone and bricks can be successfully replaced by concrete elements (blocks). Great hardness, resistance to atmospherics and a simple production process are only a few advantages of concrete blocks which rank them among ...

As the society becomes more civilized, the weight glass occupies also increases. Particularly, the modernization in architecture and westernization in life pattern have greatly expanded the sheet glass market, ...

The glass processing technology has a very long history, but it was not until after the turn of the 20th century that its development to a modern glass processing industry was finally realize.

Rotary thermoforming is a plastomers processing method used to produce hollow objects of a volume ranging from several cm~ to 20 m?, with a wall thickness ranging from 2 to 10 mm and more.

Since the development of practical cars at the end of the 19th century, the automobile industry has attained a rapid advancement, resulting in the realization of a great revolution in the means of transportation. In ...

The manufacture of final coating mixture for interior and exterior walls (made of concrete, siporex and mortar) is a discontinuous process in which production cycles follow continuously and one production cycle (mixing ...

Light sensitive diazo-materials are well known for being irreplaceable in the multiplication of all kinds of documents, especially plans, charts and texts, when contact copying paper is used with highly intense lighting ...

Of the various fractions obtained from the crude oil, the lowest-boiling fraction breaks down into gasoline for use as fuel and naphtha as main industrial solvent.

The systemic insecticide is an agricultural chemical against specific insects harmful to crops, which, when applied to leaves, stems or roots of a plant, is taken by the plant for translocation in the quantity necessary for ...