Mobile emission catalyst helps in emission reduction from automotive and stationary engines from many vehicles such as cars, trucks, commercial vehicles and buses. It reduces emission of various gases such as carbon dioxide (CO2), carbon mono oxide (CO), hydrocarbons (HC), oxide of nitrogen (NOx) and other gases which are produced due to incomplete combustion of fuel. 

It is reported the world’s highest bridge, named Beipanjiang Bridge, is open to traffic on Dec. 29, 2016. The bridge connects Guizhou and Yunnan, China. It has been the highest bridge all around the world for the bridge is 565meters again the river surface, with total length of 1341.40meters. The heights of east and west bridge piers are 269meters and 247meters. It took four years to finish such a bridge with many difficulties.

In the field of armor piercing, the United States is well ahead of all the countries in the world - including tungsten alloy armor piercing projectiles.

As technology advances, the traditional thread turning process can not meet our processing needs as follows:
1. Large weight, large parts can not be installed in the lathe;
2. Blind hole difficult turning machining thread;
3. Shaped workpiece in the lathe difficult to clamp positioning;
4. Processing large-size thread when the efficiency is too low;
5. The processing efficiency of the material is very low and difficult tool life is very short;
6. Lathe strength can not meet the turning requirements;
7. Broken chip, such as bad or difficult chip.

In this context, tungsten carbide indexable thread milling cutter came into being. Its advantages are: thread milling can achieve heavy cutting, high-speed cutting, can be difficult to complete the cutting of materials, with high processing efficiency, high thread quality (can achieve low surface roughness), tool versatility, processing security Can be significantly reduced user cost of the tool, with only one tool can produce the same pitch but different diameter of the thread, and in any thread tolerance within the manufacturing process. Not only reduces the user machine tool share, and processing efficiency increased exponentially. The tool is the processing of stainless steel, cast iron, cast steel, high strength steel and nonferrous metals and other materials, high-precision milling thread cutting tools. The product type covers all standard thread types, can be installed on the standard cutter bar, and available from stock.

At present, China's thread processing generally stagnant in the processing of traditional turning. Tungsten carbide indexable thread milling cutter successfully developed and applied in production, to fill the gaps in domestic thread milling tool zero, breaking the monopoly of foreign enterprises for a long time, so that China's thread processing technology to a new level, This is of great significance to the development of China's manufacturing industry.