What exactly does Langfang Pipeline Bureau do?

But the Pipeline Bureau is really a good unit with good pay. My college classmates work there.

At present, all state-owned enterprises have reformed and signed contracts normally after graduation from university. Generally, it is also called formal, but a contract is also signed. Only very old employees have that kind of tenure, but now they have changed to new employees. They are all contract systems, but there are many kinds of contract systems.