Manufacturing and processing strength can reflect whether a country is powerful, it is the most fundamental areas, and the foundation of high-rise buildings.Then we need an accurate detecting instrument let the operator can found and treated in time based on the test of artifacts and environment.They they can save more time, money and make the products have more competitive power.Actually the instruments in this industry is mixed and disorderly, such as the hardness measurement will be used in metallurgical industry , processing and manufacturing.measuring thickness of the combustible .Gas detection instruments and toxic gas meter may be used in processing and manufacturing, industry.