When can Chengde Shanshui Tiancheng deliver the house? Give a specific date.

You have to consult the developer specifically before you can

The specific delivery time should have a clear agreed date in the house purchase contract signed by the buyer and the seller. You can refer to the specific agreed time in the house purchase contract. The date agreed in this contract has legal effect.

if the developer fails to deliver it as scheduled, the developer is in breach of contract.