Can Qingdao gas pipe be replaced by temporary workers?

Of course. After the probation period expires, if the employer continues to employ, it shall be deemed to have become a full-time employee. According to the Labor Contract Law, if the term of the labor contract is more than three months but less than one year, the probation period shall not exceed one month, and if the term of the labor contract is more than one year but less than three years, the probation period shall not exceed two months.