If the diesel engine has just started to start the load work, due to the body temperature is low, the oil in the oil pan is thicker, the circulation is not smooth, resulting in poor lubrication, resulting in increased wear of the cylinder liner. In addition, organic acids and acid gases in the fuel chemically react with water vapor, and they will be converted into inorganic acids such as sulfuric acid, nitric acid, and carbonic acid, but when the engine's water temperature is higher than 80-85°C, the acidic substances can be discharged as gas. The engine is not harmful to the engine, but when the engine is cold, acid will condense on the cylinder wall, causing corrosion on the cylinder wall surface. Therefore, after the cooling water temperature reaches a normal temperature, the load operation is started and the service life of the liner can be extended.
Bulk of varicella vaccine,semi-Finished Products.It has good safety with low ratio in adverse reaction. And it has been exported to Bangladesh.
In 2008, BCHT successfully launched its product Varicella Vaccine, Live in China. In the following years, BCHT continuously committed to improving the product and led in 2010 removal of gelatin from adjuvant and extended the vaccine shelf-life up to 36 months which is the longest one in the world in 2011. And it has the following qualities.
Biotechnology Bioproducts Preventive,Final Bulk Medicine Preventive,Final Bulk Pharmaceutical Preventive,Vaccine Biological Products Preventive
Changchun BCHT Biotechnology Co. , http://www.ccbcht.com