(A) Bone charcoal
(B) Wood charcoal
(C) Silica gel
(D) Activated clay
(A) Bone charcoal
(B) Wood charcoal
(C) Silica gel
(D) Activated clay
| Share this... |
Facebook
|
Twitter
|
Linkedin
|
Whatsapp
|
Your email address will not be published. Required fields are marked *