The compressive strength of the empty box of the customer's sample box was measured, and the box body was not changed after being stepped on by a person weighing 150 kilograms.
Eco-friendly board - gray
Eco-friendly board - blue
Eco-friendly board - dark gray
Eco-friendly board - yellow
Protect from light
Step 1: Raw material extraction
Step 2: Grind into calcium carbonate splits
Step 3: Add graphene and other materials
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