The manufacture of environmental pollution control process equipment, not only the choice of non-metallic and metal two categories of materials, and the choice of metal materials made of equipment, the metal materials used in addition to ferrous and a small amount of non-ferrous metals, more importantly, must use special alloy steel or even rare metals. Ferrous metals, in addition to cast iron and ordinary structural steel, widely used in the number of special steel - stainless steel.

　　Mainly because the market price of stainless steel is higher, compared with ordinary ferrous materials, different grades of stainless steel may be 4 to 7 times the price of ordinary steel, the user can not afford, from the economic value of intuitive understanding is indeed so. If the designers can seriously consider the structure, physical and other aspects, as well as corrosion resistance, service life, especially in large projects selected equipment, do some economic evaluation, will find that from a long-term point of view to understand, the choice of stainless steel manufacturing equipment than the choice of ordinary steel one-time input price, although some high, but if the future to strengthen the anti-corrosion increased re-investment, maintenance, replacement and all other costs Cumulative comparison, it shows the incomparable superiority of the choice of stainless steel. Technological innovation is endless, national standards are constantly rewriting and innovation, if applied to water, gas transmission of stainless steel pipe, can be innovative national standard products to the market, then, the application of stainless steel will be promoted and popularized in the field of water supply and drainage, while giving human life to reduce many troubles, bringing a lot of convenience.

　　With the improvement of economic affordability and the continuous improvement of the material level of life, China's stainless steel production enterprises, should not be unusual thinking to see the market, should not use the traditional concept should adapt to the market, but should update the thinking, sublimation concept, through technological innovation, product replacement to guide the market consumption, the popularization of stainless steel products applied to transportation, shipbuilding, construction, home, air conditioning and other The production of the shell of home appliances, so that stainless steel has become the first choice of materials essential to human life.