pP๊NCYyI๐ฎF3Ep๊Ep๑z
ฟฒซํ[h
ก188โฺ ๑สก
sณ๐I
ณ@๐Fsuffice
@ิF481b
ณ๐F40โ
ๆ189โฺ
ฮY
metal
carbon
material
coal
petroleum
j [ึ
ฤงํ