1) Significant increase in labor productivity. In other words, more products can be produced per unit of time. The input of each labor force can create higher output value, and it can free workers from regular manual labor and engage in more creative work.2, product quality has a high degree of repe

The design of mechanical products has undergone more than a hundred years of change and development since the development of technological design in the middle of the 19th century. The history of any product production is also the history of people's pursuit of innovative design of advanced products

High-density polyurethane foam has a wide range of applications, and it has penetrated into all sectors of the national economy. It is widely used in furniture, bed, transportation, refrigeration, construction, and thermal insulation. It has become one of the indispensable materials. Become one of t