Several factors affecting the spring fatigue strength 1. The yield strength of material has a certain relationship between the yield strength and fatigue limit, in general, the higher the yield strength of the material, the higher fatigue strength is, therefore, we should try
Hardware must be able to adapt to the environment of the kitchen and wet, lampblack, and many other factors, it is good or bad for normal use and service life of ambry also is crucial.
On September 26, the director of supply chain of ASSA ABLOY greater China visited our company in the field, and the chairman of the company, qian wenyi, manager of business department zhang xiang and the relevant personnel, gave warm hospitality.
So far, water-based environmental protection coating industry after decades of development, has water-based environmental protection coating large and small enterprises throughout the country, the market
Should spring steel has excellent comprehensive performance, such as mechanical properties (especially the elastic limit, ultimate strength, showed),