Crystal Composite: 220
Crystal Composite Wedge: 219
Alloyed Metal Mesh: 440
Alloyed Metal Mesh Wedge: 441
Hope that helps! (You can also look on the wiki for block IDs if you have trouble in the future)
The configs don't directly link IDs. The IDs can only be found the BlockTypes.properties file, which links them to a name. For many updates this name was rather arbitrary, as it wasn't changed when the ID became unused and later reused. The 1st 2 code blocks contain such examples.
OP, search the BlockConfig.xml for:
Code:
<Block icon="165" name="Crystal Composite" textureId="94, 94, 94, 94, 94, 94" type="POWER_COIL_ID">
↑ found in <Manufacturing> ↑
Code:
<Block icon="166" name="Crystal Composite Wedge" textureId="94, 94, 94, 94, 94, 94" type="POWER_CELL_ID">
↑ found in <General><Decoration><Circuits> ↑
Code:
<Block icon="366" name="Alloyed Metal Mesh" textureId="91, 91, 91, 91, 91, 91" type="METAL_MESH">
↑ found in <Manufacturing> ↑
Code:
<Block icon="367" name="Alloyed Metal Mesh Wedge" textureId="91, 91, 91, 91, 91, 91" type="METAL_MESH_WEDGE">
↑ found in <General><Decoration>