Recently, the high-tech project of Sanmenxia Aluminum Co., Ltd., which is a high-tech project, successfully went offline. The metal enamel is a high-tech product developed by Sanmenxia Aluminum Corporation. It started construction on September 1, 2008. During the construction period, after the leadership of the company and the assistance of various departments, the joint efforts of all the cadres and employees in the workshop, in 5 On the 7th, trial production was completed. By May 13th, the successful trial of a one-time commissioning operation in a short period of seven days has created a record of a short period of success in the history of domestic industry and has made breakthroughs in the development of high-tech products for the company from heavy industry. It provided another successful experience for the company's circular economy development. 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.kingsirvalves.com