Crab meal is made by kiln-drying the shells, and then grinding them down to powder. This powder can be added to other fertilizers, lending the benefits of chitin, or the protein specific to crustacean shells. It can also be used by itself as crab meal fertilizer:                                                                                                                                                                                                                                                          Crude Protein : around 27~28%
Crude Ash : around 39%
Hydrochloric acid (insoluble-earth and sand) : about 0.2~0.3%
Calcium : around 13.72%
 Red Crab Shell Powder - 20kg bag.  15mt/20ft loading.
Red Crab Shell - 200kg bag.  8.8mt/40ft loading