Method: UPDATE_MATERIAL_RANGE_ITEMS
Method: DELETE_MR_ITEMS_BY_ID
Method: INSERT_MATERIAL_RANGE
Method: DELETE_MATERIAL_RANGE_ITEMS
Method: UPDATE_MATERIAL_RANGE
Method: GET_MATERIAL_RANGE_ITEMS
Method: CLASS_CONSTRUCTOR
Method: GET_MATERIAL_RANGE
Method: SWITCH_OTHER_BUYER_MR
Method: INSERT_MATERIAL_RANGE_ITEMS
Method: DELETE_MATERIAL_RANGE
Method: SWITCH_MATERIAL_RANGE
Method: GET_DB_NAME_MR_ITEM
Method: SELECT_MATERIAL_RANGE
Method: GET_INSTANCE
Method: SELECT_MATERIAL_RANGE_ITEMS
Method: GET_DB_NAME_MR