日本欧美一区二区免费不卡,久久免费国产精品,wwwx日韩淫片无码,最近2019年日本中文免费字幕,精品高潮呻吟AV久久无码

Introduction:
The enamel/enamelled glass reaction kettle(reaction tank) is a chemical equipment that enamels glass enamels containing high silicon dioxide and is lined on the inner surface of a steel container, and is then evenly bonded to the metal surface by burning at high temperatures. Therefore, the enamel reaction kettle has the dual advantages of glass stability and metal strength, and is an excellent corrosion resistant chemical equipment. The enamel reaction kettle(enamel reaction tank) is widely used for reaction, evaporation, concentration and synthesis in industrial production and scientific research such as chemical industry, medicine, dyes, pesticides, organic synthesis, petroleum, food manufacturing and defense industry. , extraction, polymerization, saponification, mineralization, chlorination, nitrification, etc. to replace expensive stainless steel and non-ferrous metals.
Reactor kettles, also known as reaction tanks, distillation tanks, water bath kettles, neutralization kettles, dissolution kettles, condensation kettles, and many other names are named based on the chemical reactions of their own products.
Our chemical reaction tanks, enamel / glass enameled reaction kettle are all fired with a specific specification electric furnace. Enamel/glass enameled equipment has smooth surface, wear resistance, heat resistance, easy washing, non-polluting materials, low price, and not easy porcelain.
Enamels and enamels are only different in name, and there is actually no essential difference. Specially speaking, enamels are low-temperature enamels(690-780 °C), and enamels are high-temperature enamels(880-1050 °C). The melting temperature of the steel plate is 1300 °C.