1.有合同、中标通知书2.直埋热力管约100多米，DN80的管"

1.有合同、中标通知书2.直埋热力管约100多米，DN80的管"

Results (English) 1:

1. There is a contract and a notice of winning the bid
2. The direct-buried heating pipe is about 100 meters, and the pipe is DN80"

Results (English) 2:

1. With contract and letter of acceptance
2. The directly buried heat pipe is more than 100m, DN80 pipe“

Results (English) 3:

1. There is a contract and a letter of acceptance. 2. Bury the heat pipe about 100 meters directly, DN80 pipe "