BEIJING CHONGLEE’s logo ,“Five diamonds”, represents famous brand in chemical fiber machinery industry. This logo not onlycommemorates five earliest products—VC406D spinning machine, VC443A drawing machine multi-point temperature control panel, profiled spinneret, MH441-160 electronic carving unit, and RKP702 Polypropylene flat yarn machine, but also records several generations of CHONGLEE employees’ diligence and innovation.