Laiwu puts into production of the largest micro-nano iron powder project in China
Taigang is an important base for the research and development of nanomaterials in China, and has gathered talents and teams of nano-research and development at home and abroad. With the support of Laiwu City, Taigang actively responded to the grim situation of the steel industry, and owned one domestic invention patent for nanomaterials and five new patents. Micro-nano iron powder has a broad market in the fields of military industry and civil use. It is widely used in super-hard diamond tools, high-performance metal soft magnetic materials, super-hard materials and other fields, and has broad prospects.
A ballcock (also balltap or float valve) is a mechanism or machine for filling water tanks, such as those found in flush toilets, while avoiding overflow and (in the event of low water pressure) backflow. The modern ballcock was invented by José Antonio de Alzate y RamÃrez, a Mexican priest and scientist, who described the device in 1790 in the Gaceta de Literatura Méxicana.[1] It consists of a valve connected to a hollow sealed float by means of a lever, mounted near the top of the tank. The float is often ball-shaped, hence the name ballcock. The valve is connected to the incoming water supply, and is opened and closed by the lever which has the float mounted on the end. When the water level rises, the float rises with it; once it rises to a pre-set level, the mechanism forces the lever to close the valve and shut off the water flow. This is an example of negative feedback and of proportional control.
Ball Cock, Brass Ball Bibcock, Ballcock Valve, Toilet Ballcock Valve
ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.kingsir-valves.com