Is Hangzhou Wantong Valve Co., Ltd. a fraud?

According to some workers' feedback, Hangzhou Wantong Valve Co., Ltd. has some fraudulent behaviors. Specifically, some workers signed a training agreement when applying for the company, but later found themselves signing a contract with Hanlinhui Human Resources Development Co., Ltd. when signing a labor contract. Moreover, if this arrangement is not accepted, the workers will face the situation that the previous month's work will be in vain, and the company will not give any written agreement or contract. In addition, some workers reported to the labor department because of this behavior of the company, but the company delayed the time for various reasons, which led to the failure of workers to work normally.