When decorating the house, the master cut his hand while cutting the metal iron bar used to put on the head of the gate, and there was a little blood on the iron bar. Is this good for the door?

It is normal for someone to be injured and bleed during construction. We also need to find a house where the construction workers are completely bleeding during the construction. Protective equipment is much better now. Before there were no protective gloves, it was common for construction workers to wear fingers. So don't care too much about this. Housing must be safe for the future.