1, grass ash liquid to control insects. 10 kg of grass ash per acre is immersed in 50 kg o.......

I. Overview The CSP conveyor roller is an important spare part of Ma Steel's "10th Fiv.......

The lock joints and drill pipe joints produced by our factory have free radial tolerances, and.......

1. What are the basic principles for a given shape tolerance? A: A pattern is a tool for conve.......

The mold cavity processing technology has a great influence on the mold quality. How to proces.......

Figure 1 shows a simplified diagram of the processing of the pinhole process in a factory. Whe.......

Our factory is a professional factory producing internal combustion engines and auto parts. Th.......

Among the parts produced by our factory, there is a part as shown in Figure 1. If the special .......

Due to the production needs, our factory decided to replace the two pumps in the water supply .......

1. Overview Nickel-phosphorus alloy plating technology is a new surface coating process develo.......

Surface roughness is an important indicator of surface quality. It has a direct impact on the .......

When we are working on the upper and lower needle plate slots (Fig. 1), the upper and lower ne.......