Features: 1) Bonded Nd-Fe-B magnet is manufactured by binding rapid-quenching Nd-Fe-B powders. 2) The rapid-quenching Nd-Fe-B powders is mixed with plastic resin to form a magnet by compression molding with epoxy and infection molding with nylon. 3) The injection molding has a particularly useful feature in large-quantity. 4) The injection molding's magnets values are lower than the compression molding because of their relative low density. 5) The shapes of high dimensional accuracy can be produced without secondary processing.