Absorbent Quick Dry Soft Diatomite Soil Bath Mat Pad. 1.Diatomite is a biogenic siliceous sedimentary rock mainly composed of the remains of ancient diatoms, and its chemical formation is mainly SIO2 because diatomite has many shell cavities. This makes diatomite porous, with a porosity of 90-92% and able to absorb 1.5-4 times its own weight in

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