What ticket do I need to apply for to upgrade the charging pile of State Grid Corporation?

The bills that need to be processed for the upgrading of charging piles in State Grid Corporation of China include engineering construction contracts and engineering design schemes.

1. Engineering construction contract: it is one of the necessary documents for upgrading the charging pile. It is necessary to sign a construction contract with the contractor to specify the relevant terms of the project, such as engineering quantity, price, construction period, etc.

2. Engineering design scheme: When upgrading the charging pile, a detailed design scheme is required. This plan needs to be carefully examined and approved before the construction of the project begins.