Question

what are the advantages and disadvantages of IHF ​

Answer 1

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▪︎IVF helps many patients who would be otherwise unable to conceive.

▪︎It has been used for a long time and has a safe track record.

▪︎IVF can be more successful than IUI and other forms of assisted reproductive technology.

▪︎It can help single women and same- couples.

▪︎IVF can help to diagnose fertilisation problems.

Answer 2

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Norms:

For example:

ISO 4014/4017

DIN EN 24014/24017

(DIN 931/933)

Advantages:

Standardized and commonly used

Economic for short clamping lentghs and small dimensions

Disadvantages:

concentration of stresses in head

danger of cracking through upset head

limited angularity of thread axis to underlying surface

procurement of special materials

use not feasible at high bending loads....

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