Repair with a sledgehammer and wrench and flatten with a press. According to the inquiry, I know.

1. Repair the steel mesh slightly with a sledgehammer and wrench, and don't use too much force. Two people put up the steel mesh together, so that the diagonal of the steel grating can be bumped on the ground.

2. Put something under the steel mesh, and then flatten it with a press to correct the inclined outer frame steel mesh. It should be noted that the force should be moderate, otherwise the steel mesh will be damaged.