Modern hydraulic door closers (referred to as door closers) began with a patent registered by Americans in the early twentieth century. Unlike traditional door closers, they are buffered by throttling the liquid in the door closer. . The core of the hydraulic door closer design idea is to realize the control of the closing process, so that the various functional indicators of the closing process can be adjusted according to the needs of the person. The significance of the door closer is not only the automatic closing of the door, but also the protection of the door frame and the door body (smooth closing). More importantly, the door closer has become an indispensable part of the intelligent management of modern buildings.
Door closers are mainly used in commercial and public buildings, but they are also used at home. They have many uses, the most important of which is to close the door itself to limit the spread of fire and ventilation in the building.
Tmao is a kind of flavoring substance, widely distributed in aquatic animals. It has many special biological characteristics and very important physiological and biochemical functions.
TMAO is a natural mailing resistant permeation agent and protein stabilizer. In addition, TMAO has remarkable growth effect and feeding effect in the experiment. It can greatly reduce feed coefficient, improve feed utilization and conversion rate, and have no influence on animal muscles and liver. It is a kind of fine Feed Additives which worth developing and popularizing.
TMAO(Aquatic Additives)
Tmao,Aquatic Feed Additives,Feed Grade Tmao,Dihydrate Tmao
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