Sand bottomdie-casting padlock series, sentinel production "earth" brand iron padlock series, breed diversity, the specification is complete.
砂底压铸挂锁系列,定点生产“地球”牌铁挂锁系列,品种多样,规格齐全。
2
A piece of hot metal sufficient to slightly overfill the die shape is placed in the bottomdie, and the top die is forced against it, so that the metal takes the internal shape of the die.