Very odd what they have written
" Loft and Lie adjustment
Mizuno irons can be adjusted to varying degrees depending on model and material type. In some cases, due to the softness of our forgings, “craftsman’s” marks on the hosels may result from bending them to the required loft / lie.
Any adjustment to loft will alter the bounce angle on the sole. Making the loft stronger will increase the offset and reduce the bounce angle.
Iron lofts can be bent up to 2 degrees stronger than standard (note: making the loft stronger will increase the offset and reduce the bounce angle of the sole).
No loft or lie adjustments can be made to drivers or fairway woods.