General equipment valves have those application characteristics

1 threaded connection valve. This connection is usually the valve into the end into a tapered pipe or straight pipe thread, it can be connected to the tapered pipe nipple or pipe. Since such a connection may present a larger leak channel, these channels can be plugged with sealants, sealing tap

The evolution of the scale of US auto parts import and export

Comparison of major export and import countries of auto parts in the United States

According to the statistics from the US Bureau of Statistics, the largest export destination for US auto parts is Canada and Mexico in the North Amer

Small vacuum pump knowledge

A micro- vacuum pump common sense The so-called vacuum, refers to the pressure in a given space, below 101325Pa gas state. In a vacuum, the leanness of a gas is usually expressed as the pressure of the gas. Obviously, the lower the pressure, the thinner the gas. There are a vari

ZDC monitoring: China's sales volume of cars in August 2010

In August 2010, the Chinese sedan market finally recovered, and overall sales picked up. Sales of most car lines all increased. However, some car lines that were ranked behind still fell, due to sales among cars. Uneven growth, the market structure has also