| http://www.w3.org/ns/prov#value | - In this embodiment, the insert 24??? material should be a harder material, such as titanium, for the low lofted clubs (2-4 irons), a softer material, such as steel, for the medium lofted clubs (5-7 irons), and yet a softer material, such tellurium copper, for the high lofted clubs (8-wedges).
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