"Copper Block" should be "Block of Copper"
and
"Semi Weathered Cut Copper Slab" should be "Semi-Weathered Cut Copper Slab"
and
"Waxed Semi Weathered Cut Copper Slab" should be "Waxed Semi-Weathered Cut Copper Slab"
"Copper Block" should be "Block of Copper"
and
"Semi Weathered Cut Copper Slab" should be "Semi-Weathered Cut Copper Slab"
and
"Waxed Semi Weathered Cut Copper Slab" should be "Waxed Semi-Weathered Cut Copper Slab"
Regarding the semi-weathered / semi weathered: MC-203594