They use expanding and contracting chambers to move the liquids. Metering pumps also have a high level of accuracy over time and can pump a wide range of liquids including corrosives, acids, and bases, as well as slurries and viscous liquids. They are used in various industries like manufacturing, agriculture, and medicine. There are a variety of types of metering pumps that work in different ways. For the purposes of this post, we’ll look at diaphragm and peristaltic metering pumps.http://www.depamupumps.com/metering-pump-1

It finds usage in various industries like firearms industry, energy industry, gas and oil and even food industry. While many debate upon the strength and durability of this form of casting, doubting mainly that this method might provide weaker metal shapes as compared to forging or metal fabrication, these doubts have been laid to rest since aerospace, defence and medical fields have trusted equipment that are made from Precision Investment Casting.http://www.disoncasting.com/pr....ecision-investment-c

By 3000 B.C men and women in China had begun to stain their fingernails with colours according to their social class, while Greek women used poisonous lead carbonate (PbCO3) to achieve a pale complexion. Clays were ground into pastes for cosmetic use in traditional African societies and indigenous Australians still use a wide range of crushed rocks and minerals to create body paint for ceremonies and initiations.http://www.jianfengchemical.co....m/cosmetics-raw-mate

The company Micro Switch was acquired by Honeywell in 1950. And Honeywell registered the trademark Micro Switch. Other manufacturers used the name Snap-Action Switch or Basic Switch.http://www.jxnma.com/mirco-switch/

As the "heart" of the aircraft, aero engines are closely related to aviation safety. Nowadays, there are various non-destructive testing tools for testing and repairing it. The use of industrial endoscope for hole detection is one of the routine tasks. It does not need to disassemble and destroy the engine structure, and can perform efficient testing. Accident prevention plays an important role.http://www.riouendoscope.com/industrial-endoscope/