Physical description
8506.1 - Moderately sized coal.
8506.2 - Moderately sized coal.
8506.3 - Moderately sized coal.
8506.4 - Very large sized coal.
8506.1 - Moderately sized coal.
8506.2 - Moderately sized coal.
8506.3 - Moderately sized coal.
8506.4 - Very large sized coal.