1, the shape of the ball nest. This point in the production of the manufacturers can be based on customer requirements for spherical design, which the application of the material there is no real impact. Shape of the choice is more. But for some very special shape do not advocate, such as some very special is not conducive to stripping.
2, the size of the ball nest, the same shape, pressure ball ball nest size is not agreed with the standard, according to user needs to customize the size.
3, the depth of the ball nest. This is necessary to say, mainly the molding problem, the ball is too deep in the suppression of the material may not be easy to release. For the humidity of the material may also cause sticky wall, plug and other conditions. So the depth of the ball and the nest have certain requirements
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