Why does Huahui Recruitment say there is no quota?

The company is fully staffed. Huahui said that the reason for the vacancy is that the company is full. Shanghai Huahui Glass Co., Ltd. is a privately-owned enterprise specializing in the production and processing of plastic steel doors and windows, curtain walls, aluminum alloy doors and windows, tempered glass, special glass, guardrail, photovoltaic glass and other products. Headquartered in Shanghai, the company has a complete and scientific quality management system.