| http://www.w3.org/ns/prov#value | - The key base according to the present invention is a key base having a key base main body, and a presser layer formed on the back surface of said key base main body, wherein said key base main body has a first sheet having flexibility and elasticity, and a second sheet which is harder than said first sheet and has the front surface thereof directly or indirectly secured to the back surface of said
|
