Potential answers for "Class with hard material"

⭐⭐⭐⭐ GEOLOGY
⭐⭐ CLAY
⭐⭐ METAL
⭐⭐ EASYA
⭐⭐ TALC
⭐⭐ ABCS
⭐⭐ APBIO
⭐⭐ BAMBOOPOLE
⭐⭐ LAB

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