Jiangxi Xingan County promotes chemical projects in Changzhou

A few days ago, the 2011 Jiangxi Xingan (Changzhou) Chemical Industry Project Promotion Conference hosted by the CPC Xingan County Committee and the Xingan County People's Government was held in Changzhou City. Fourteen companies, including Jiangxi Yuanshi Investment Co., Ltd., Zhejian.......

Eaton 9X55 series UPS certified by DNV

The internationally renowned classification society, the Norwegian Classification Society, has officially passed the model certification of the Eaton 8-15 kVA marine series UPS sys.......

Mitsubishi Engineering Plastics launches new PC plant

Japan's Mitsubishi Engineering Plastics Corporation (MEP), a 60,000-ton/year-old polycarbonate (PC) unit in Kawasaki, Japan, has been officially put into production in early April, which will ease the supply shortage in the PC market in Asia.

PC resin is a kind of hard thermoplast.......

Pressure reducing valve principle

A pressure relief valve is a special device that automatically reduces the working pressure on the line by reducing the higher water pressure in the line before the valve to the level required by the line after the valve. Pressure relief valve is widely used in high-rise buildings, urban water .......