Using equal diameter steel wires to strand,ensuring not to skip steel wire during stranding,thickened value of core steel wire is different with different structure of strands.

It puts forward a skill,that is earlier stretch of the muscles,to make further increase on the tension coming from shrinkage and quicken the active rhythmn,with suitable angle,rational height and the fastest initial speed putting the shot.

Penile augmentation using acellular dermal matrix;