China Railway Construction Engineering Group Co., Ltd., the resume submitted online, directly let me go to the project department for an interview. Is this reliable?

It's not reliable. It's no use calling. You think the telephone will be reliable, and the project department is generally not directly responsible for personnel recruitment. The official project department of the company only has the right to report the personnel requirements, but has no right to recruit. To say the least, even if the company exists and is not a liar, such an informal company has no future ~ ~